diff --git a/src/hammer-ssr.js b/src/hammer-ssr.js
index 32b8f0e..ea89296 100644
--- a/src/hammer-ssr.js
+++ b/src/hammer-ssr.js
@@ -1,4 +1,4 @@
-module.exports = function Hammer {
+module.exports = function Hammer() {
   console.log(`[vue-touch] Your should never see this message.
     When you do, your code tried to call 'new Hammer(), but your app has included a stub for HammerJS, provided by vue-touch, instead of the actual HammerJS library.
   `)