diff --git a/src/tokenizer.shared.js b/src/tokenizer.shared.js
index fd1c37b..35c7e85 100644
--- a/src/tokenizer.shared.js
+++ b/src/tokenizer.shared.js
@@ -106,6 +106,8 @@ var getTokens = (function() {
         if (!s) return [];
 
         tokens = [];
+        tn = 0;
+        ln = 1;
 
         var c, cn;