diff --git a/reactos/ntoskrnl/ob/obhandle.c b/reactos/ntoskrnl/ob/obhandle.c
index 5068dd98579..a82595f477c 100644
--- a/reactos/ntoskrnl/ob/obhandle.c
+++ b/reactos/ntoskrnl/ob/obhandle.c
@@ -1920,7 +1920,7 @@ ObpDuplicateHandleCallback(IN PEPROCESS Process,
         Status = ObpIncrementHandleCount(&ObjectHeader->Body,
                                          &AccessState,
                                          KernelMode,
-                                         HandleTableEntry->ObAttributes,
+                                         HandleTableEntry->ObAttributes & OBJ_HANDLE_ATTRIBUTES,
                                          Process,
                                          ObInheritHandle);
         if (!NT_SUCCESS(Status))