diff --git a/wp-includes/js/wp-ajax-response.js b/wp-includes/js/wp-ajax-response.js
index 56f8eb2449..95558536d2 100644
--- a/wp-includes/js/wp-ajax-response.js
+++ b/wp-includes/js/wp-ajax-response.js
@@ -46,8 +46,8 @@ wpAjax = jQuery.extend( {
 		}
 		if ( isNaN(x) ) { return !re.html('<div class="error"><p>' + x + '</p></div>'); }
 		x = parseInt(x,10);
-		if ( -1 == x ) { return !re.html('<div class="error"><p>' + this.noPerm + '</p></div>'); }
-		else if ( 0 === x ) { return !re.html('<div class="error"><p>' + this.broken  + '</p></div>'); }
+		if ( -1 == x ) { return !re.html('<div class="error"><p>' + wpAjax.noPerm + '</p></div>'); }
+		else if ( 0 === x ) { return !re.html('<div class="error"><p>' + wpAjax.broken  + '</p></div>'); }
 		return true;
 	},
 	invalidateForm: function ( selector ) {