diff --git a/reactos/include/base.h b/reactos/include/base.h
index db0ec2d5940..cb6d02f1de3 100644
--- a/reactos/include/base.h
+++ b/reactos/include/base.h
@@ -592,6 +592,7 @@ typedef WINBOOL SECURITY_CONTEXT_TRACKING_MODE;
 /* ----------------------------------------------- */
 
 typedef FARPROC WNDENUMPROC;
+typedef FARPROC MFENUMPROC;
 typedef FARPROC ENHMFENUMPROC;
 typedef DWORD CCSTYLE, *PCCSTYLE, *LPCCSTYLE;
 typedef DWORD CCSTYLEFLAGA, *PCCSTYLEFLAGA, *LPCCSTYLEFLAGA;