diff --git a/reactos/include/ddk/ketypes.h b/reactos/include/ddk/ketypes.h
index feff72a5b10..edf8e4383a1 100644
--- a/reactos/include/ddk/ketypes.h
+++ b/reactos/include/ddk/ketypes.h
@@ -21,6 +21,8 @@ struct _KMUTANT;
 
 typedef LONG KPRIORITY;
 
+typedef LONG FLONG;
+
 typedef VOID STDCALL_FUNC
 (*PKBUGCHECK_CALLBACK_ROUTINE)(PVOID Buffer, ULONG Length);
 
@@ -223,4 +225,6 @@ typedef struct _EPROCESS EPROCESS, *PEPROCESS;
 
 typedef HANDLE HSEMAPHORE;
 
+typedef HANDLE HDRVOBJ;
+
 #endif /* __INCLUDE_DDK_KETYPES_H */