diff --git a/.babelrc b/.babelrc
index f7a8b05..9038f43 100644
--- a/.babelrc
+++ b/.babelrc
@@ -1,5 +1,6 @@
 {
   "plugins": [
-    "transform-es2015-modules-commonjs"
+    "transform-es2015-modules-commonjs",
+    "transform-export-extensions"
   ]
 }
diff --git a/package.json b/package.json
index 714fdc0..0e199f2 100644
--- a/package.json
+++ b/package.json
@@ -31,6 +31,7 @@
   "devDependencies": {
     "babel-cli": "^6.18.0",
     "babel-plugin-transform-es2015-modules-commonjs": "^6.18.0",
+    "babel-plugin-transform-export-extensions": "^6.8.0",
     "babel-register": "^6.18.0",
     "chai": "^3.5.0",
     "eslint": "^3.9.1",