diff --git a/reactos/include/ddk/ntifs.h b/reactos/include/ddk/ntifs.h
index 4b7c7d3f201..e4f662e4dab 100644
--- a/reactos/include/ddk/ntifs.h
+++ b/reactos/include/ddk/ntifs.h
@@ -817,6 +817,12 @@ typedef struct _SECURITY_CLIENT_CONTEXT {
 typedef enum _OBJECT_INFORMATION_CLASS {
   ObjectBasicInformation = 0,
   ObjectTypeInformation = 2,
+  /* Not for public use */
+  ObjectNameInformation = 1,
+  ObjectTypesInformation = 3,
+  ObjectHandleFlagInformation = 4,
+  ObjectSessionInformation = 5,
+  MaxObjectInfoClass
 } OBJECT_INFORMATION_CLASS;
 
 
diff --git a/reactos/include/xdk/obtypes.h b/reactos/include/xdk/obtypes.h
index 3b28c0c94f5..4485febc89f 100644
--- a/reactos/include/xdk/obtypes.h
+++ b/reactos/include/xdk/obtypes.h
@@ -139,14 +139,14 @@ typedef enum _OBJECT_INFORMATION_CLASS {
   ObjectBasicInformation = 0,
   ObjectTypeInformation = 2,
 $endif (_NTIFS_)
-$if (_PRIVATE_)
+$if (_NTIFS_) // we should remove these, but the kernel needs them :-/
   /* Not for public use */
   ObjectNameInformation = 1,
   ObjectTypesInformation = 3,
   ObjectHandleFlagInformation = 4,
   ObjectSessionInformation = 5,
   MaxObjectInfoClass
-$endif (_PRIVATE_)
+$endif (_NTIFS_)
 $if (_NTIFS_)
 } OBJECT_INFORMATION_CLASS;