diff --git a/contrib/auto-render/auto-render.js b/contrib/auto-render/auto-render.js
index c06bd7b8..8a77e233 100644
--- a/contrib/auto-render/auto-render.js
+++ b/contrib/auto-render/auto-render.js
@@ -99,5 +99,4 @@ const renderMathInElement = function(elem, options) {
     renderElem(elem, optionsCopy);
 };
 
-
-export default renderMathInElement;
+module.exports = renderMathInElement;
diff --git a/katex.js b/katex.js
index 65caa921..9e4d7d3e 100644
--- a/katex.js
+++ b/katex.js
@@ -63,7 +63,7 @@ const generateParseTree = function(expression, options) {
 };
 
 
-const katex = {
+module.exports = {
     render: render,
     renderToString: renderToString,
     /**
@@ -74,5 +74,3 @@ const katex = {
     __parse: generateParseTree,
     ParseError: ParseError,
 };
-
-export default katex;
diff --git a/package.json b/package.json
index 88ed99b1..5dc99bcd 100644
--- a/package.json
+++ b/package.json
@@ -19,7 +19,6 @@
     "babel-eslint": "^7.2.0",
     "babel-jest": "^20.0.3",
     "babel-loader": "^7.1.2",
-    "babel-plugin-add-module-exports": "^0.2.1",
     "babel-plugin-transform-class-properties": "^6.23.0",
     "babel-plugin-transform-runtime": "^6.15.0",
     "babel-preset-es2015": "^6.18.0",
diff --git a/server.js b/server.js
index 2e2619ec..d87ceb50 100644
--- a/server.js
+++ b/server.js
@@ -27,14 +27,7 @@ function serveBrowserified(file, standaloneName) {
         }
 
         const options = {
-            transform: [babelify.configure({
-                presets: ["es2015", "flow"],
-                plugins: [
-                    "transform-runtime",
-                    "transform-class-properties",
-                    "add-module-exports",
-                ],
-            })],
+            transform: [babelify],
         };
         if (standaloneName) {
             options.standalone = standaloneName;
diff --git a/webpack.config.js b/webpack.config.js
index 0d7fd26c..3a9eb56c 100644
--- a/webpack.config.js
+++ b/webpack.config.js
@@ -7,7 +7,6 @@ const katexConfig = {
         filename: 'katex.js',
         library: 'katex',
         libraryTarget: 'umd',
-        libraryExport: 'default',
     },
 };
 
@@ -26,7 +25,6 @@ const autoRenderConfig = {
         filename: 'auto-render.js',
         library: 'renderMathInElement',
         libraryTarget: 'umd',
-        libraryExport: 'default',
     },
 };