diff --git a/reactos/include/ndk/i386/mmtypes.h b/reactos/include/ndk/i386/mmtypes.h
index 9572ffdf304..01bc426ca6b 100644
--- a/reactos/include/ndk/i386/mmtypes.h
+++ b/reactos/include/ndk/i386/mmtypes.h
@@ -115,9 +115,9 @@ typedef struct _MMPTE_LIST
     ULONG Valid:1;
     ULONG OneEntry:1;
     ULONG filler0:8;
-    ULONG NextEntry:20;
     ULONG Prototype:1;
     ULONG filler1:1;
+    ULONG NextEntry:20;
 } MMPTE_LIST;
 
 #ifndef CONFIG_SMP