diff --git a/.gitignore b/.gitignore
index e733e929eb..8d55145894 100644
--- a/.gitignore
+++ b/.gitignore
@@ -12,3 +12,4 @@ coverage
 dist
 .package.json
 packages/6to5-runtime/*.js
+packages/6to5-runtime/regenerator/*.js
diff --git a/packages/6to5-runtime/regenerator/.gitkeep b/packages/6to5-runtime/regenerator/.gitkeep
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/packages/build-runtime.js b/packages/build-runtime.js
index 85151efc08..e14cefdaba 100644
--- a/packages/build-runtime.js
+++ b/packages/build-runtime.js
@@ -49,5 +49,6 @@ var buildHelpers = function () {
 
 writeFile("helpers.js", buildHelpers());
 writeFile("core-js.js", readFile("core-js/library"));
-writeFile("regenerator.js", readFile("regenerator/runtime-module"));
+writeFile("regenerator/index.js", readFile("regenerator/runtime-module"));
+writeFile("regenerator/runtime.js", readFile("regenerator/runtime"));
 updatePackage();