diff --git a/Setup/Cosmos.iss b/Setup/Cosmos.iss
index d708cf84c..3da249942 100644
--- a/Setup/Cosmos.iss
+++ b/Setup/Cosmos.iss
@@ -40,6 +40,7 @@ AppSupportURL=http://www.goCosmos.org/
 AppUpdatesURL=http://www.goCosmos.org/
 AppVersion={#ChangeSetVersion}
 SetupMutex=CosmosSetupMutexName,Global\CosmoSetupMutexName
+UsePreviousAppDir=false
 DefaultDirName={#RealPath}\Cosmos User Kit
 DefaultGroupName=Cosmos User Kit
 OutputDir=.\Setup\Output