diff --git a/reactos/base/applications/fltmc/fltmc.cpp b/reactos/base/applications/fltmc/fltmc.cpp
index f8f3cdf49ae..10461b703af 100644
--- a/reactos/base/applications/fltmc/fltmc.cpp
+++ b/reactos/base/applications/fltmc/fltmc.cpp
@@ -19,7 +19,7 @@
 #else
 #include <Windows.h>
 #endif
-#include <fltUser.h>
+#include <fltuser.h>
 #include <atlstr.h>
 #include "resource.h"