diff --git a/hld/Eval.hx b/hld/Eval.hx
index 305c56e..d3fcbad 100644
--- a/hld/Eval.hx
+++ b/hld/Eval.hx
@@ -220,6 +220,9 @@ class Eval {
 			case VArray(t, len, read, _):
 				var i = toInt(i);
 				return i < 0 || i >= len ? defVal(t) : read(i);
+			case VBytes(len, read, _):
+				var i = toInt(i);
+				return i < 0 || i >= len ? { v : VUndef, t : HUi8 } : { v : VInt(read(i)), t : HUi8 };
 			default:
 			}
 			throw "Can't access " + valueStr(v) + "[" + valueStr(i) + "]";