diff --git a/apps/matrixclock/matrixclock.js b/apps/matrixclock/matrixclock.js
index 4b3d4a92c..1ff4e052d 100644
--- a/apps/matrixclock/matrixclock.js
+++ b/apps/matrixclock/matrixclock.js
@@ -10,7 +10,7 @@
 const Locale = require('locale');
 
 const PREFERENCE_FILE = "matrixclock.settings.json";
-const settings = Object.assign({'color': 'theme'},
+const settings = Object.assign({color: "theme"},
     require('Storage').readJSON(PREFERENCE_FILE, true) || {});
 
 const colors = {
diff --git a/apps/matrixclock/matrixclock.settings.js b/apps/matrixclock/matrixclock.settings.js
index 06a9549bc..6aec17670 100644
--- a/apps/matrixclock/matrixclock.settings.js
+++ b/apps/matrixclock/matrixclock.settings.js
@@ -1,6 +1,6 @@
 (function(back) {
     const PREFERENCE_FILE = "matrixclock.settings.json";
-    var settings = Object.assign({color_scheme : "theme"},
+    var settings = Object.assign({color : "theme"},
         require('Storage').readJSON(PREFERENCE_FILE, true) || {});
 
     console.log("loaded:" + JSON.stringify(settings));