diff --git a/modules/utils.js b/modules/utils.js
index e859f1b4..446b9ce4 100644
--- a/modules/utils.js
+++ b/modules/utils.js
@@ -63,8 +63,7 @@ const TST_PREF_PREFIX = 'extensions.treestyletab.';
 let TreeStyleTabUtils = {
 
 	get prefs () {
-		delete this.prefs;
-		return this.prefs = prefs;
+		return prefs;
 	},
 
 /* Save/Load Prefs */