diff --git a/reactos/ntoskrnl/ob/obhandle.c b/reactos/ntoskrnl/ob/obhandle.c
index 60aa55592e4..25e15754175 100644
--- a/reactos/ntoskrnl/ob/obhandle.c
+++ b/reactos/ntoskrnl/ob/obhandle.c
@@ -3301,7 +3301,7 @@ NTAPI
 ObIsKernelHandle(IN HANDLE Handle)
 {
     /* We know we're kernel mode, so just check for the kernel handle flag */
-    return (BOOLEAN)((ULONG_PTR)Handle & KERNEL_HANDLE_FLAG);
+    return (BOOLEAN)(((ULONG_PTR)Handle & KERNEL_HANDLE_FLAG) != 0);
 }
 
 /* EOF */