diff --git a/dlls/msisys.ocx/msisys.c b/dlls/msisys.ocx/msisys.c
index 3863fbae64d..056699e9362 100644
--- a/dlls/msisys.ocx/msisys.c
+++ b/dlls/msisys.ocx/msisys.c
@@ -87,7 +87,7 @@ BOOL WINAPI DllMain(
  */
 HRESULT WINAPI DllCanUnloadNow(void)
 {
-	return S_OK;
+	return S_FALSE;
 }
 
 /***********************************************************************