diff --git a/ext/bg/js/settings/dictionaries.js b/ext/bg/js/settings/dictionaries.js
index 1e780909..ffd28142 100644
--- a/ext/bg/js/settings/dictionaries.js
+++ b/ext/bg/js/settings/dictionaries.js
@@ -721,6 +721,6 @@ class DictionaryController {
     }
 
     _preventPageExit() {
-        return this.settingsController.preventPageExit();
+        return this._settingsController.preventPageExit();
     }
 }