diff --git a/reactos/include/ndk/umtypes.h b/reactos/include/ndk/umtypes.h
index 95c1c8f2f53..e4810967581 100644
--- a/reactos/include/ndk/umtypes.h
+++ b/reactos/include/ndk/umtypes.h
@@ -128,7 +128,9 @@ typedef LONG KPRIORITY;
 //
 #if !defined(_NTSECAPI_H) && !defined(_SUBAUTH_H) && !defined(_NTSECAPI_)
 
+#ifndef __BCRYPT_H__
 typedef LONG NTSTATUS, *PNTSTATUS;
+#endif
 
 typedef struct _UNICODE_STRING
 {
diff --git a/reactos/include/psdk/bcrypt.h b/reactos/include/psdk/bcrypt.h
index a5dc630eac7..cea5d90e302 100644
--- a/reactos/include/psdk/bcrypt.h
+++ b/reactos/include/psdk/bcrypt.h
@@ -16,8 +16,8 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  */
 
-#ifndef __WINE_BCRYPT_H
-#define __WINE_BCRYPT_H
+#ifndef __BCRYPT_H__
+#define __BCRYPT_H__
 
 #ifndef WINAPI
 #define WINAPI __stdcall
@@ -47,4 +47,4 @@ typedef struct _BCRYPT_ALGORITHM_IDENTIFIER
     ULONG  dwFlags;
 } BCRYPT_ALGORITHM_IDENTIFIER;
 
-#endif  /* __WINE_BCRYPT_H */
+#endif  /* __BCRYPT_H__ */