diff --git a/SMILEBASIC/token.d b/SMILEBASIC/token.d
index ff54d29..306ff77 100644
--- a/SMILEBASIC/token.d
+++ b/SMILEBASIC/token.d
@@ -80,6 +80,7 @@ enum TokenType
 
 enum TokenValueType
 {
+    none,
     integer,
     double_,
     string_