diff --git a/Gruntfile.js b/Gruntfile.js
index <HASH>..<HASH> 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -401,7 +401,9 @@ module.exports = function (grunt) {
 
     mochaSetup: {
       default: {
-        files: { src: helper.watchFiles(['[Ss]pec.js'], ['./app/addons/**/*[Ss]pec.js', './app/addons/**/*[Ss]pec.react.js'])},
+        files: {
+          src: helper.watchFiles(['[Ss]pec.js'], ['./app/addons/**/*[Ss]pec.js', './app/addons/**/*[Ss]pec.react.js', './app/core/**/*[Ss]pec.js'])
+        },
         template: 'test/test.config.underscore',
         config: './app/config.js'
       }
tests: run all tests

even those in `./app/core`

PR: #<I>
PR-URL: <URL>