diff --git a/assets/stryker.js b/assets/stryker.js
index 763060c..5c4c792 100644
--- a/assets/stryker.js
+++ b/assets/stryker.js
@@ -21,6 +21,11 @@ module.exports = {
   testRunner:        'jasmine',
   jasmineConfigFile: 'jasmine.json',
   coverageAnalysis:  'perTest',
-  mutate:            [ 'index.js' ]
+  mutate:            [
+    '**/*.js',
+    '**/*.ts',
+    '!**/node_modules/',
+    '!**/spec/'
+  ]
 };
 `;
diff --git a/package.json b/package.json
index f6d1b8a..d250a7c 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@sapphirecode/standard",
-  "version": "1.5.1",
+  "version": "1.5.2",
   "main": "index.js",
   "author": {
     "name": "Timo Hocker",