diff --git a/templates/register.jinja2 b/templates/register.jinja2
index 2cd524b..dbbfa37 100644
--- a/templates/register.jinja2
+++ b/templates/register.jinja2
@@ -142,7 +142,7 @@ function get_challenge() {
     })  
 }
 
-window.onload = getchallenge
+window.onload = get_challenge;
 
 </script>