diff --git a/reactos/dll/win32/kernel32/client/appcache.c b/reactos/dll/win32/kernel32/client/appcache.c
index 0bc9f8bf27e..2180498319d 100644
--- a/reactos/dll/win32/kernel32/client/appcache.c
+++ b/reactos/dll/win32/kernel32/client/appcache.c
@@ -15,7 +15,7 @@
 
 /* GLOBALS ********************************************************************/
 
-ULONG g_ShimsEnabled;
+ULONG g_ShimsEnabled = -1;
 static BOOL g_ApphelpInitialized = FALSE;
 static PVOID g_pApphelpCheckRunAppEx;
 static PVOID g_pSdbPackAppCompatData;