diff --git a/INSTALL b/INSTALL
index 9000422d5..a5afd2548 100644
--- a/INSTALL
+++ b/INSTALL
@@ -4,6 +4,22 @@ This file contains some useful details on the installation from source code
 for GRAMPS. It does not cover installation of a pre-built binary package.
 For that use your package manager, the rest is already done by the packager.
 
+uninstall old version
+---------------------
+If you do a source install in the same place of an existing install,
+you need to remove the old version first. You can delete the old
+version by:
+  
+  * deleting the installed directories (for example,
+    /usr/share/gramps)
+  * OR by running "make uninstall" from the old directory where you
+    ran "make install" (not the new GRAMPS directory)
+
+GRAMPS is a python application, so loading happens on reading the
+files, meaning that files of a previous version that are no longer
+present in the new version can still be loaded, making the new install
+unstable.
+
 
 configure vs autogen scripts
 ----------------------------