diff --git a/common/content/options.js b/common/content/options.js
index 757a95a1..0ac31b14 100644
--- a/common/content/options.js
+++ b/common/content/options.js
@@ -1016,8 +1016,8 @@ const Options = Module("options", {
                     context.advance(filter.length);
                     filter = filter.substr(0, filter.length - 1);
                     context.completions = [
-                            [this._loadPreference(filter, null, false), "Current Value"],
-                            [this._loadPreference(filter, null, true), "Default Value"]
+                            [options._loadPreference(filter, null, false), "Current Value"],
+                            [options._loadPreference(filter, null, true), "Default Value"]
                     ].filter(function ([k]) k != null);
                     return;
                 }