diff --git a/content/options.js b/content/options.js
index d665d0b9..4eaa7e44 100644
--- a/content/options.js
+++ b/content/options.js
@@ -70,7 +70,8 @@ liberator.Option = function (names, description, type, defaultValue, extraInfo)
 
     this.__defineGetter__("globalvalue", function () liberator.options.store.get(cannonName));
     this.__defineSetter__("globalvalue", function (val) liberator.options.store.set(cannonName, val));
-    this.globalvalue = this.defaultValue;
+    if (this.globalvalue == undefined)
+        this.globalvalue = this.defaultValue;
 
     this.get = function (scope)
     {