diff --git a/scenarios/ctf/smash_crack_grab_run.xml b/scenarios/ctf/smash_crack_grab_run.xml
index 3203ae0dc..991b3c646 100644
--- a/scenarios/ctf/smash_crack_grab_run.xml
+++ b/scenarios/ctf/smash_crack_grab_run.xml
@@ -167,7 +167,7 @@
         <value>/</value>
       </input>
       <input into="account">
-        <value>nostromousr</value>
+        <value>{"username":"nostromousr"}</value>
       </input>
     </vulnerability>