diff --git a/MultiMC.cpp b/MultiMC.cpp
index a13ad794..297d08fd 100644
--- a/MultiMC.cpp
+++ b/MultiMC.cpp
@@ -37,7 +37,7 @@
 
 using namespace Util::Commandline;
 
-MultiMC::MultiMC(int &argc, char **argv, const QString &data_dir_override)
+MultiMC::MultiMC(int &argc, char **argv, bool root_override)
 	: QApplication(argc, argv), m_version{VERSION_MAJOR,   VERSION_MINOR,	 VERSION_BUILD,
 										  VERSION_CHANNEL, VERSION_BUILD_TYPE}
 {
@@ -111,14 +111,7 @@ MultiMC::MultiMC(int &argc, char **argv, const QString &data_dir_override)
 	QString adjustedBy;
 	// change directory
 	QString dirParam = args["dir"].toString();
-	if (!data_dir_override.isEmpty())
-	{
-		// the override is used for tests (although dirparam would be enough...)
-		// TODO: remove the need for this extra logic
-		adjustedBy += "Test override " + data_dir_override;
-		dataPath = data_dir_override;
-	}
-	else if (!dirParam.isEmpty())
+	if (!dirParam.isEmpty())
 	{
 		// the dir param. it makes multimc data path point to whatever the user specified
 		// on command line
@@ -130,6 +123,7 @@ MultiMC::MultiMC(int &argc, char **argv, const QString &data_dir_override)
 		dataPath = applicationDirPath();
 		adjustedBy += "Fallback to binary path " + dataPath;
 	}
+
 	if(!ensureFolderPathExists(dataPath) || !QDir::setCurrent(dataPath))
 	{
 		// BAD STUFF. WHAT DO?
@@ -139,6 +133,11 @@ MultiMC::MultiMC(int &argc, char **argv, const QString &data_dir_override)
 		return;
 	}
 
+	if (root_override)
+	{
+		rootPath = binPath;
+	}
+	else
 	{
 	#ifdef Q_OS_LINUX
 		QDir foo(PathCombine(binPath, ".."));
@@ -541,7 +540,7 @@ void MultiMC::installUpdates(const QString updateFilesDir, UpdateFlags flags)
 	#else
 		#error Unsupported operating system.
 	#endif
-	
+
 	QStringList args;
 	// ./updater --install-dir $INSTALL_DIR --package-dir $UPDATEFILES_DIR --script
 	// $UPDATEFILES_DIR/file_list.xml --wait $PID --mode main
@@ -552,8 +551,10 @@ void MultiMC::installUpdates(const QString updateFilesDir, UpdateFlags flags)
 	if(flags & DryRun)
 		args << "--dry-run";
 	if (flags & RestartOnFinish)
+	{
 		args << "--finish-cmd" << finishCmd;
-
+		args << "--finish-dir" << data();
+	}
 	QLOG_INFO() << "Running updater with command" << updaterBinary << args.join(" ");
 	QFile::setPermissions(updaterBinary, (QFileDevice::Permission)0x7755);
 
diff --git a/MultiMC.h b/MultiMC.h
index ea3034b0..d02099f3 100644
--- a/MultiMC.h
+++ b/MultiMC.h
@@ -58,7 +58,7 @@ public:
 	};
 
 public:
-	MultiMC(int &argc, char **argv, const QString &root = QString());
+	MultiMC(int &argc, char **argv, bool root_override = false);
 	virtual ~MultiMC();
 
 	std::shared_ptr<SettingsObject> settings()
diff --git a/depends/util/src/cmdutils.cpp b/depends/util/src/cmdutils.cpp
index 43a0bcde..b12098dc 100644
--- a/depends/util/src/cmdutils.cpp
+++ b/depends/util/src/cmdutils.cpp
@@ -286,11 +286,11 @@ QHash<QString, QVariant> Parser::parse(QStringList argv)
 		// we were expecting an argument
 		{
 			QString name = expecting.first();
-
+/*
 			if (map.contains(name))
 				throw ParsingError(
 					QString("Option %2%1 was given multiple times").arg(name, optionPrefix));
-
+*/
 			map[name] = QVariant(arg);
 
 			expecting.removeFirst();
@@ -316,10 +316,11 @@ QHash<QString, QVariant> Parser::parse(QStringList argv)
 
 			if (m_options.contains(name))
 			{
+				/*
 				if (map.contains(name))
 					throw ParsingError(QString("Option %2%1 was given multiple times")
 										   .arg(name, optionPrefix));
-
+*/
 				OptionDef *option = m_options[name];
 				if (option->type == otSwitch)
 					map[name] = true;
@@ -367,11 +368,11 @@ QHash<QString, QVariant> Parser::parse(QStringList argv)
 					throw ParsingError(QString("Unknown flag %2%1").arg(flag, flagPrefix));
 
 				OptionDef *option = m_flags[flag];
-
+/*
 				if (map.contains(option->name))
 					throw ParsingError(QString("Option %2%1 was given multiple times")
 										   .arg(option->name, optionPrefix));
-
+*/
 				if (option->type == otSwitch)
 					map[option->name] = true;
 				else // if (option->type == otOption)
diff --git a/mmc_updater/src/UpdateInstaller.cpp b/mmc_updater/src/UpdateInstaller.cpp
index aca23ff7..b29c5316 100644
--- a/mmc_updater/src/UpdateInstaller.cpp
+++ b/mmc_updater/src/UpdateInstaller.cpp
@@ -46,6 +46,11 @@ void UpdateInstaller::setFinishCmd(const std::string& cmd)
 	m_finishCmd = cmd;
 }
 
+void UpdateInstaller::setFinishDir(const std::string &dir)
+{
+	m_finishDir = dir;
+}
+
 std::list<std::string> UpdateInstaller::updaterArgs() const
 {
 	std::list<std::string> args;
@@ -63,6 +68,11 @@ std::list<std::string> UpdateInstaller::updaterArgs() const
 	{
 		args.push_back("--dry-run");
 	}
+	if (m_finishDir.size())
+	{
+		args.push_back("--dir");
+		args.push_back(m_finishDir);
+	}
 	return args;
 }
 
@@ -420,6 +430,11 @@ void UpdateInstaller::restartMainApp()
 
 		if (!command.empty())
 		{
+			if(!m_finishDir.empty())
+			{
+				args.push_back("--dir");
+				args.push_back(m_finishDir);
+			}
 			LOG(Info,"Starting main application " + command);
 			if(!m_dryRun)
 			{
diff --git a/mmc_updater/src/UpdateInstaller.h b/mmc_updater/src/UpdateInstaller.h
index 5cbac561..5920deec 100644
--- a/mmc_updater/src/UpdateInstaller.h
+++ b/mmc_updater/src/UpdateInstaller.h
@@ -34,6 +34,7 @@ class UpdateInstaller
 		void setAutoClose(bool autoClose);
 		void setDryRun(bool dryRun);
 		void setFinishCmd(const std::string& cmd);
+		void setFinishDir(const std::string& dir);
 
 		void setObserver(UpdateObserver* observer);
 
@@ -62,6 +63,7 @@ class UpdateInstaller
 		std::string m_packageDir;
 		std::string m_backupDir;
 		std::string m_finishCmd;
+		std::string m_finishDir;
 		PLATFORM_PID m_waitPid = 0;
 		UpdateScript* m_script = nullptr;
 		UpdateObserver* m_observer = nullptr;
diff --git a/mmc_updater/src/UpdaterOptions.cpp b/mmc_updater/src/UpdaterOptions.cpp
index 5f9e97d8..abc7c6d7 100644
--- a/mmc_updater/src/UpdaterOptions.cpp
+++ b/mmc_updater/src/UpdaterOptions.cpp
@@ -40,6 +40,7 @@ void UpdaterOptions::parse(int argc, char** argv)
 	parser.setOption("install-dir");
 	parser.setOption("package-dir");
 	parser.setOption("finish-cmd");
+	parser.setOption("finish-dir");
 	parser.setOption("script");
 	parser.setOption("wait");
 	parser.setOption("mode");
@@ -74,6 +75,10 @@ void UpdaterOptions::parse(int argc, char** argv)
 	{
 		finishCmd = parser.getValue("finish-cmd");
 	}
+	if (parser.getValue("finish-dir"))
+	{
+		finishDir = parser.getValue("finish-dir");
+	}
 
 	showVersion = parser.getFlag("version");
 	forceElevated = parser.getFlag("force-elevated");
diff --git a/mmc_updater/src/UpdaterOptions.h b/mmc_updater/src/UpdaterOptions.h
index d9104804..d4345490 100644
--- a/mmc_updater/src/UpdaterOptions.h
+++ b/mmc_updater/src/UpdaterOptions.h
@@ -15,6 +15,7 @@ class UpdaterOptions
 		std::string packageDir;
 		std::string scriptPath;
 		std::string finishCmd;
+		std::string finishDir;
 		PLATFORM_PID waitPid;
 		std::string logFile;
 		bool showVersion;
diff --git a/mmc_updater/src/main.cpp b/mmc_updater/src/main.cpp
index f6b31a32..602c30a6 100644
--- a/mmc_updater/src/main.cpp
+++ b/mmc_updater/src/main.cpp
@@ -138,7 +138,8 @@ int main(int argc, char** argv)
 	         + ", wait-pid: " + intToStr(options.waitPid)
 	         + ", script-path: " + options.scriptPath
 	         + ", mode: " + intToStr(options.mode)
-			 + ", finish-cmd: " + options.finishCmd);
+			 + ", finish-cmd: " + options.finishCmd
+			 + ", finish-dir: " + options.finishDir);
 
 	installer.setMode(options.mode);
 	installer.setInstallDir(options.installDir);
@@ -148,6 +149,7 @@ int main(int argc, char** argv)
 	installer.setForceElevated(options.forceElevated);
 	installer.setAutoClose(options.autoClose);
 	installer.setFinishCmd(options.finishCmd);
+	installer.setFinishDir(options.finishDir);
 	installer.setDryRun(options.dryRun);
 
 	if (options.mode == UpdateInstaller::Main)
diff --git a/mmc_updater/src/tests/CMakeLists.txt b/mmc_updater/src/tests/CMakeLists.txt
index 79402245..08501a98 100644
--- a/mmc_updater/src/tests/CMakeLists.txt
+++ b/mmc_updater/src/tests/CMakeLists.txt
@@ -44,5 +44,4 @@ macro(ADD_UPDATER_TEST CLASS)
 endmacro()
 
 add_updater_test(TestParseScript)
-add_updater_test(TestUpdaterOptions)
 add_updater_test(TestFileUtils)
diff --git a/mmc_updater/src/tests/TestUpdaterOptions.cpp b/mmc_updater/src/tests/TestUpdaterOptions.cpp
deleted file mode 100644
index a4cb7d33..00000000
--- a/mmc_updater/src/tests/TestUpdaterOptions.cpp
+++ /dev/null
@@ -1,68 +0,0 @@
-#include "TestUpdaterOptions.h"
-
-#include "FileUtils.h"
-#include "Platform.h"
-#include "TestUtils.h"
-#include "UpdaterOptions.h"
-
-#include <string.h>
-#include <stdlib.h>
-
-void TestUpdaterOptions::testOldFormatArgs()
-{
-	const int argc = 6;
-	char* argv[argc];
-	argv[0] = strdup("updater");
-
-	std::string currentDir("CurrentDir=");
-	const char* appDir = 0;
-
-	// CurrentDir is the path to the directory containing the main
-	// Mendeley Desktop binary, on Linux and Mac this differs from
-	// the root of the install directory
-#ifdef PLATFORM_LINUX
-	appDir = "/tmp/path-to-app/lib/mendeleydesktop/libexec/";
-	FileUtils::mkpath(appDir);
-#elif defined(PLATFORM_MAC)
-	appDir = "/tmp/path-to-app/Contents/MacOS/";
-	FileUtils::mkpath(appDir);
-#elif defined(PLATFORM_WINDOWS)
-	appDir = "C:/path/to/app/";
-#endif
-	currentDir += appDir;
-
-	argv[1] = strdup(currentDir.c_str());
-	argv[2] = strdup("TempDir=/tmp/updater");
-	argv[3] = strdup("UpdateScriptFileName=/tmp/updater/file_list.xml");
-	argv[4] = strdup("AppFileName=/path/to/app/theapp");
-	argv[5] = strdup("PID=123456");
-
-	UpdaterOptions options;
-	options.parse(argc,argv);
-
-	TEST_COMPARE(options.mode,UpdateInstaller::Setup);
-#ifdef PLATFORM_LINUX
-	TEST_COMPARE(options.installDir,"/tmp/path-to-app");
-#elif defined(PLATFORM_MAC)
-	// /tmp is a symlink to /private/tmp on Mac
-	TEST_COMPARE(options.installDir,"/private/tmp/path-to-app");
-#else
-	TEST_COMPARE(options.installDir,"C:/path/to/app/");
-#endif
-	TEST_COMPARE(options.packageDir,"/tmp/updater");
-	TEST_COMPARE(options.scriptPath,"/tmp/updater/file_list.xml");
-	TEST_COMPARE(options.waitPid,123456);
-
-	for (int i=0; i < argc; i++)
-	{
-		free(argv[i]);
-	}
-}
-
-int main(int,char**)
-{
-	TestList<TestUpdaterOptions> tests;
-	tests.addTest(&TestUpdaterOptions::testOldFormatArgs);
-	return TestUtils::runTest(tests);
-}
-
diff --git a/mmc_updater/src/tests/TestUpdaterOptions.h b/mmc_updater/src/tests/TestUpdaterOptions.h
deleted file mode 100644
index 5ed102c1..00000000
--- a/mmc_updater/src/tests/TestUpdaterOptions.h
+++ /dev/null
@@ -1,8 +0,0 @@
-#pragma once
-
-class TestUpdaterOptions
-{
-	public:
-		void testOldFormatArgs();
-};
-
diff --git a/package/linux/MultiMC b/package/linux/MultiMC
index 7fb72f98..3579913c 100755
--- a/package/linux/MultiMC
+++ b/package/linux/MultiMC
@@ -15,7 +15,6 @@ fi
 
 
 MMC_DIR="$(dirname "$(readlink -f "$0")")"
-cd "${MMC_DIR}"
 echo "MultiMC Dir: ${MMC_DIR}"
 
 # Set up env
diff --git a/tests/TestUtil.h b/tests/TestUtil.h
index 231ce7f6..57d1fdf2 100644
--- a/tests/TestUtil.h
+++ b/tests/TestUtil.h
@@ -39,7 +39,7 @@ int main(int argc, char *argv[]) \
 { \
 	char *argv_[] = { argv[0] _MMC_EXTRA_ARGV }; \
 	int argc_ = 1 + _MMC_EXTRA_ARGC; \
-	MultiMC app(argc_, argv_/*, QDir::temp().absoluteFilePath("MultiMC_Test")*/); \
+	MultiMC app(argc_, argv_, true); \
 	app.setAttribute(Qt::AA_Use96Dpi, true); \
 	TestObject tc; \
 	return QTest::qExec(&tc, argc, argv); \
diff --git a/tests/tst_DownloadUpdateTask.cpp b/tests/tst_DownloadUpdateTask.cpp
index 3b2c6793..883e90e8 100644
--- a/tests/tst_DownloadUpdateTask.cpp
+++ b/tests/tst_DownloadUpdateTask.cpp
@@ -254,7 +254,7 @@ slots:
 		pathOrig = path = "MultiMC.app/Foo/Bar/Baz";
 		qDebug() << "Proper OSX path: " << path;
 		result = DownloadUpdateTask::fixPathForOSX(path);
-		QCOMPARE(path, QString("../../Foo/Bar/Baz"));
+		QCOMPARE(path, QString("Foo/Bar/Baz"));
 		QCOMPARE(result, true);
 
 		// Bad OSX path