diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4a6b02a7d3..7b00f85cf4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,11 @@
 
 _Note: Gaps between patch versions are faulty/broken releases._
 
+## 2.9.1
+
+ * **Internal**
+  * Fix runtime generator breaking the helper inclusion loop.
+
 ## 2.9.0
 
  * **Internal**
diff --git a/lib/6to5/runtime-generator.js b/lib/6to5/runtime-generator.js
index ec9924ecc5..8ea86c5c99 100644
--- a/lib/6to5/runtime-generator.js
+++ b/lib/6to5/runtime-generator.js
@@ -20,7 +20,7 @@ module.exports = function (namespace) {
 
   _.each(File.helpers, function (name) {
     if (_.contains(File.excludeHelpersFromRuntime, name)) {
-      return false;
+      return;
     }
 
     var key = t.identifier(t.toIdentifier(name));