diff --git a/src/ZoneCommon/Game/T6/T6_Assets.h b/src/ZoneCommon/Game/T6/T6_Assets.h
index 3c1acfb2..bc521b47 100644
--- a/src/ZoneCommon/Game/T6/T6_Assets.h
+++ b/src/ZoneCommon/Game/T6/T6_Assets.h
@@ -2622,7 +2622,7 @@ namespace T6
     struct __declspec(align(16)) XSurface
     {
         char tileMode;
-        char vertListCount;
+        unsigned char vertListCount;
         unsigned __int16 flags;
         unsigned __int16 vertCount;
         unsigned __int16 triCount;