diff --git a/launcher/net/Upload.cpp b/launcher/net/Upload.cpp
index 12dd1e78..cfda4b4e 100644
--- a/launcher/net/Upload.cpp
+++ b/launcher/net/Upload.cpp
@@ -43,6 +43,16 @@
 
 namespace Net {
 
+    bool Upload::abort()
+    {
+        if (m_reply) {
+            m_reply->abort();
+        } else {
+            m_state = State::AbortedByUser;
+        }
+        return true;
+    }
+
     void Upload::downloadProgress(qint64 bytesReceived, qint64 bytesTotal) {
         setProgress(bytesReceived, bytesTotal);
     }
diff --git a/launcher/net/Upload.h b/launcher/net/Upload.h
index 56687a31..7c194bbc 100644
--- a/launcher/net/Upload.h
+++ b/launcher/net/Upload.h
@@ -46,6 +46,8 @@ namespace Net {
 
     public:
         static Upload::Ptr makeByteArray(QUrl url, QByteArray *output, QByteArray m_post_data);
+        auto abort() -> bool override;
+        auto canAbort() const -> bool override { return true; };
 
     protected slots:
         void downloadProgress(qint64 bytesReceived, qint64 bytesTotal) override;