diff --git a/GVFS/GVFS.Installer.Mac/scripts/Distribution.xml b/GVFS/GVFS.Installer.Mac/scripts/Distribution.xml
index 61bc1aa333..26853166d5 100644
--- a/GVFS/GVFS.Installer.Mac/scripts/Distribution.xml
+++ b/GVFS/GVFS.Installer.Mac/scripts/Distribution.xml
@@ -34,7 +34,7 @@
         
         function GetBlockingProcesses()
         {
-            var watchList = [ "GVFS.Mount", "git", "gitk", "Wish" ];
+            var watchList = [ "git", "gitk", "Wish" ];
             var blockingProcesses = new Array();
             for (var process of watchList)
             {
diff --git a/GVFS/GVFS.Installer.Mac/scripts/preinstall b/GVFS/GVFS.Installer.Mac/scripts/preinstall
index 9d04dc7335..138dad3191 100755
--- a/GVFS/GVFS.Installer.Mac/scripts/preinstall
+++ b/GVFS/GVFS.Installer.Mac/scripts/preinstall
@@ -17,3 +17,10 @@ if [ "$isKextLoaded" -gt 0 ]; then
     echo $unloadCmd
     eval $unloadCmd || exit 1
 fi
+
+GVFSBINPATH="/usr/local/vfsforgit/gvfs"
+if [ -f "${GVFSBINPATH}" ]; then
+    unmountCmd="${GVFSBINPATH} service --unmount-all"
+    echo $unmountCmd
+    eval $unmountCmd || exit 1
+fi