diff --git a/javascripts/govuk/shim-links-with-button-role.js b/javascripts/govuk/shim-links-with-button-role.js
index 3abaa2ca..ace8c2b0 100644
--- a/javascripts/govuk/shim-links-with-button-role.js
+++ b/javascripts/govuk/shim-links-with-button-role.js
@@ -23,7 +23,7 @@
       // array of keys to match against upon the keyup event
       keycodes: [
         32 // spacekey
-      ],
+      ]
     },
 
     // event behaviour (not a typical anonymous function for resuse if needed)