diff --git a/karma.conf.js b/karma.conf.js
index 5890570ca3..0f26af61fb 100644
--- a/karma.conf.js
+++ b/karma.conf.js
@@ -19,13 +19,18 @@ module.exports = function (config) {
 
     webpack: {
       resolve: {
-        extensions: ['', '.js']
+        extensions: ['', '.js', '.json']
       },
       externals: {
         fs: '{}'
       },
       node: {
         Buffer: true
+      },
+      module: {
+        loaders: [
+          { test: /\.json$/, loader: 'json' }
+        ]
       }
     },
 
diff --git a/package.json b/package.json
index aa1fd8b172..c9a86fd318 100644
--- a/package.json
+++ b/package.json
@@ -38,6 +38,7 @@
     "chai": "^3.4.1",
     "fs-blob-store": "^5.2.1",
     "istanbul": "^0.4.1",
+    "json-loader": "^0.5.4",
     "karma": "^0.13.19",
     "karma-chrome-launcher": "^0.2.2",
     "karma-cli": "^0.1.2",