diff --git a/src/utils.js b/src/utils.js
index 256b2ec..d6bf8ba 100644
--- a/src/utils.js
+++ b/src/utils.js
@@ -82,6 +82,6 @@ function quoteForRegexpClass(s) {
  */
 function buildNodeVisitor(functions) {
   return function(node) {
-    functions[node.type].apply(null, arguments));
+    return functions[node.type].apply(null, arguments);
   }
 }