diff --git a/tsconfig.server.json b/tsconfig.server.json
index 2d23226548..979f5c2743 100644
--- a/tsconfig.server.json
+++ b/tsconfig.server.json
@@ -15,6 +15,6 @@
     "src/**/*.stub.ts",
     "src/**/testing/*",
     "src/**/mocks/*",
-    "node_modules/klaro"
+    "node_modules/klaro/*"
   ],
 }
diff --git a/webpack.server.config.js b/webpack.server.config.js
index 264ae71939..e762c14cce 100644
--- a/webpack.server.config.js
+++ b/webpack.server.config.js
@@ -25,7 +25,13 @@ module.exports = {
   module: {
     noParse: /polyfills-.*\.js/,
     rules: [
-      { test: /\.ts$/, loader: 'ts-loader',
+    {
+      test: /\.js$/,
+      exclude: [/node_modules\/klaro/],
+    },
+
+      {
+        test: /\.ts$/, loader: 'ts-loader',
         options: {
           configFile: "tsconfig.server.json"
         } },
diff --git a/webpack/webpack.prod.ts b/webpack/webpack.prod.ts
index e9fba2e65e..ddb7f03403 100644
--- a/webpack/webpack.prod.ts
+++ b/webpack/webpack.prod.ts
@@ -18,6 +18,15 @@ module.exports = Object.assign({}, commonExports, {
   recordsOutputPath: projectRoot('webpack.records.json'),
   entry: buildRoot('./main.server.ts'),
   target: 'node',
+  module: {
+    rules: [
+      ...commonExports.module.rules,
+      {
+        test: /\.js$/,
+        exclude: [/node_modules\/klaro/],
+      }
+    ]
+  },
   externals: [nodeExternals({
     whitelist: [
       /@angular/,