diff --git a/reactos/include/ddk/portcls.h b/reactos/include/ddk/portcls.h
index 226073aca5b..8300ddd41ef 100644
--- a/reactos/include/ddk/portcls.h
+++ b/reactos/include/ddk/portcls.h
@@ -144,14 +144,6 @@ extern "C" {
 #include <ksmedia.h>
 #include <drmk.h>
 
-#ifdef __cplusplus
-extern "C" {
-#include <wdm.h>
-}
-#else
-#include <wdm.h>
-#endif
-
 #ifndef PC_NO_IMPORTS
 #define PORTCLASSAPI EXTERN_C __declspec(dllimport)
 #else