diff --git a/CLIENT_DATA/delsub32.ins b/CLIENT_DATA/delsub32.ins
index ce92c91..19af72e 100644
--- a/CLIENT_DATA/delsub32.ins
+++ b/CLIENT_DATA/delsub32.ins
@@ -22,7 +22,7 @@ if FileExists($IniFile$)
 		comment "Uninstall program found, starting uninstall"
 		Dosbatch_uninstall
 		sub_check_exitcode
-		Winbatch_uninstall_old
+		Winbatch_uninstall_old /WaitforProcessending "Au_.exe" /Timeoutseconds 10
 		sub_check_exitcode
 	endif
 endif
@@ -30,7 +30,7 @@ if FileExists($UninstallProgram$)
 	comment "Uninstall program found, starting uninstall"
 	Dosbatch_uninstall
 	sub_check_exitcode
-	Winbatch_uninstall
+	Winbatch_uninstall /WaitforProcessending "Au_.exe" /Timeoutseconds 10
 	sub_check_exitcode
 endif