diff --git a/lib/route/compiled-grammar.js b/lib/route/compiled-grammar.js
index 58e6c01..50aa823 100644
--- a/lib/route/compiled-grammar.js
+++ b/lib/route/compiled-grammar.js
@@ -159,8 +159,7 @@ parse: function parse(input) {
         vstack.length = vstack.length - n;
         lstack.length = lstack.length - n;
     }
-    _token_stack:
-        var lex = function () {
+            var lex = function () {
             var token;
             token = lexer.lex() || EOF;
             if (typeof token !== 'number') {
diff --git a/scripts/compile_parser.js b/scripts/compile_parser.js
index 909bdf6..6676421 100755
--- a/scripts/compile_parser.js
+++ b/scripts/compile_parser.js
@@ -10,7 +10,10 @@ var parser = new jison.Parser(grammar);
 // eslint-disable-next-line no-underscore-dangle
 parser.lexer = new Lexer(grammar.lex, null, grammar.terminals_);
 
-var compiledGrammar = parser.generate({ moduleType: 'js' });
+// Remove _token_stack label manually until fixed in jison:
+// https://github.com/zaach/jison/issues/351
+// https://github.com/zaach/jison/pull/352
+var compiledGrammar = parser.generate({ moduleType: 'js' }).replace(/_token_stack:\s?/, '');
 
 
 fs.writeFileSync(