diff --git a/background/background.js b/background/background.js
index 420287c2..0ea3e0cf 100644
--- a/background/background.js
+++ b/background/background.js
@@ -50,12 +50,6 @@ window.API_METHODS = Object.assign(window.API_METHODS || {}, {
     return browser.runtime.openOptionsPage()
       .then(() => new Promise(resolve => setTimeout(resolve, 100)))
       .then(() => msg.broadcastExtension({method: 'optionsCustomizeHotkeys'}));
-  },
-
-  installType() {
-    // types: "admin", "development", "normal", "sideload" & "other"
-    // "normal" = addon installed from webstore
-    return chrome.management.getSelf(info => localStorage.installType = info.installType);
   }
 });
 
@@ -150,8 +144,9 @@ chrome.runtime.onInstalled.addListener(({reason}) => {
   });
   // themes may change
   delete localStorage.codeMirrorThemes;
-  // save install type
-  window.API_METHODS.installType();
+  // save install type: "admin", "development", "normal", "sideload" or "other"
+  // "normal" = addon installed from webstore
+  chrome.management.getSelf(info => localStorage.installType = info.installType);
 });
 
 // *************************************************************************