diff --git a/src/UI/Config.js b/src/UI/Config.js
index e826e90cf..8f2bc7118 100644
--- a/src/UI/Config.js
+++ b/src/UI/Config.js
@@ -14,7 +14,7 @@ define(
             },
 
             getValueBoolean: function (key, defaultValue) {
-                return this.getValue(key, defaultValue) === 'true';
+                return this.getValue(key, defaultValue.toString()) === 'true';
             },
 
             getValue: function (key, defaultValue) {