diff --git a/media/js/zamboni/buttons.js b/media/js/zamboni/buttons.js
index d54317b3ce5..411f74758da 100644
--- a/media/js/zamboni/buttons.js
+++ b/media/js/zamboni/buttons.js
@@ -64,6 +64,8 @@ var installButton = function() {
 
     // Helper for dealing with lazy-loaded z.button.messages.
     var message = function(msg) {
+        // Get the xpi link for the first visible button.
+        params.url = $button.filter(':visible')[0].href;
         return function(){ return format(z.button.messages[msg], params); }
     };
 
@@ -253,8 +255,6 @@ var installButton = function() {
         addToApp();
         versionsAndPlatforms();
     }
-    // Get the xpi link for the first visible button.
-    params.url = $button.filter(':visible')[0].href;
 };