diff --git a/source/game/obj/object.h b/source/game/obj/object.h
index 175e441..b45bc63 100644
--- a/source/game/obj/object.h
+++ b/source/game/obj/object.h
@@ -16,7 +16,7 @@
 #endif
 
 const unsigned ObjectTypeBitOffset = 26;
-const unsigned ObjectTypeMask = (unsigned)(0xFF << ObjectTypeBitOffset);
+const unsigned ObjectTypeMask = 0xFFU << ObjectTypeBitOffset;
 const unsigned ObjectIDMask = 0xFFFFFFFF >> (32 - ObjectTypeBitOffset);
 extern unsigned ObjectTypeCount;