diff --git a/lib/techs/mock-lang-js.js b/lib/techs/mock-lang-js.js
index a9b30f4..ff3635a 100644
--- a/lib/techs/mock-lang-js.js
+++ b/lib/techs/mock-lang-js.js
@@ -34,7 +34,7 @@ module.exports = require('enb/lib/build-flow').create()
                     content = content.substring(0, mapIndex);
                 }
 
-                return [content, mock, map].join('\n');
+                return [mock, content, map].join('\n');
             });
     })
     .createTech();