diff --git a/setup/setup.nsi b/setup/setup.nsi
index 71b2925..c067824 100644
--- a/setup/setup.nsi
+++ b/setup/setup.nsi
@@ -686,7 +686,13 @@ Function .onInit
 		SetErrorLevel 1
 		Quit
 	${EndIf}
-
+  ${If} ${FileExists} "$OUTDIR\Uninstall.exe"
+		IfSilent +3
+		Exec '"$OUTDIR\Uninstall.exe"'
+		Quit
+		Exec '"$OUTDIR\Uninstall.exe" /S'
+		Quit
+	${EndIf}
 	SetOutPath $PLUGINSDIR
 	File Patches.ini