diff --git a/background/background.js b/background/background.js
index b3acf34b..ba4f0db0 100644
--- a/background/background.js
+++ b/background/background.js
@@ -1,11 +1,10 @@
 /*
- global dbExec getStyles saveStyle deleteStyle
- global handleCssTransitionBug detectSloppyRegexps
- global openEditor
- global styleViaAPI
- global loadScript
- global updater
- */
+global dbExec getStyles saveStyle deleteStyle
+global handleCssTransitionBug detectSloppyRegexps
+global openEditor
+global styleViaAPI
+global loadScript
+*/
 'use strict';
 
 window.API_METHODS = Object.assign(window.API_METHODS || {}, {
diff --git a/background/update.js b/background/update.js
index 8485ea05..cd9b77bb 100644
--- a/background/update.js
+++ b/background/update.js
@@ -6,8 +6,7 @@ global API_METHODS
 */
 'use strict';
 
-// eslint-disable-next-line no-var
-var updater = (() => {
+(() => {
 
   const STATES = {
     UPDATED: 'updated',
@@ -31,7 +30,7 @@ var updater = (() => {
 
   API_METHODS.updateCheckAll = checkAllStyles;
   API_METHODS.updateCheck = checkStyle;
-  API_METHODS.getUpdaterStates = () => updater.STATES;
+  API_METHODS.getUpdaterStates = () => STATES;
 
   prefs.subscribe(['updateInterval'], schedule);
   schedule();