diff --git a/js/ui/unlockDialog.js b/js/ui/unlockDialog.js
index 79c8290de..52ef50cbd 100644
--- a/js/ui/unlockDialog.js
+++ b/js/ui/unlockDialog.js
@@ -283,6 +283,7 @@ const UnlockDialog = new Lang.Class({
         this._currentQuery = null;
         this._firstQuestion = true;
 
+        this._promptEntry.text = '';
         this._promptEntry.clutter_text.set_password_char('\u25cf');
         this._promptEntry.menu.isPassword = true;