diff --git a/sdk/include/reactos/manifest_dll.rc b/sdk/include/reactos/manifest_dll.rc
index 3a036bf3a2b..4349cab6596 100644
--- a/sdk/include/reactos/manifest_dll.rc
+++ b/sdk/include/reactos/manifest_dll.rc
@@ -1,5 +1,5 @@
 
-#ifndef CREATEPROCESS_MANIFEST_RESOURCE_ID
+#ifndef ISOLATIONAWARE_MANIFEST_RESOURCE_ID
 #error please include winuser.h before including me!
 #endif