diff --git a/src/litegraph.js b/src/litegraph.js
index bfacaec94..e6d79b775 100755
--- a/src/litegraph.js
+++ b/src/litegraph.js
@@ -418,7 +418,7 @@
             }
 
             if (this.auto_sort_node_types) {
-                r.sort((a, b) => a.title.localeCompare(b.title));
+                r.sort(function(a,b){return a.title.localeCompare(b.title)});
             }
 
             return r;