diff --git a/lib/websocket-server.js b/lib/websocket-server.js
index 707bd0849..36820e114 100644
--- a/lib/websocket-server.js
+++ b/lib/websocket-server.js
@@ -364,6 +364,6 @@ function abortHandshake (socket, code, message, headers) {
  *     characters from both its beginning and end
  * @private
  */
-function trim(str) {
+function trim (str) {
   return str.trim();
 }