diff --git a/CLIENT_DATA/delsub32.ins b/CLIENT_DATA/delsub32.ins
index 87c2077..9f7831f 100644
--- a/CLIENT_DATA/delsub32.ins
+++ b/CLIENT_DATA/delsub32.ins
@@ -19,13 +19,13 @@ if FileExists($IniFile$)
 	Set $UninstallProgramOld$ = $InstallDir$ + "\" + $UninstallProg$
 	if FileExists($UninstallProgramOld$)
 		comment "Uninstall program found, starting uninstall"
-		Winbatch_uninstall_old
+		Winbatch_uninstall_old /WaitforProcessending "$UninstallProgramOld$" /Timeoutseconds 10
 		sub_check_exitcode
 	endif
 endif
 if FileExists($UninstallProgram$)
 	comment "Uninstall program found, starting uninstall"
-	Winbatch_uninstall
+	Winbatch_uninstall /WaitforProcessending "$UninstallProgram$" /Timeoutseconds 10
 	sub_check_exitcode
 endif