diff --git a/CLIENT_DATA/setup64.ins b/CLIENT_DATA/setup64.ins
index 383bd0c..0520abf 100644
--- a/CLIENT_DATA/setup64.ins
+++ b/CLIENT_DATA/setup64.ins
@@ -17,7 +17,7 @@ DefVar $ExitCode$
 DefVar $OLD_VERSION$
 DefVar $OLD_CREATOR_TAG$
 DefVar $OLD_RELEASE$
-DevVar $RealInstallMsi$
+DefVar $RealInstallMsi$
 
 Set $LogDir$ = "%SystemDrive%\tmp"