diff --git a/frontend/ui/src/components/RegistrationFormCreateTeam.svelte b/frontend/ui/src/components/RegistrationFormCreateTeam.svelte
index bb4ceecc..70a359bc 100644
--- a/frontend/ui/src/components/RegistrationFormCreateTeam.svelte
+++ b/frontend/ui/src/components/RegistrationFormCreateTeam.svelte
@@ -42,6 +42,9 @@
      if (!partR) {
          validateTeamName();
      } else {
+         // Ensure jTeam, defined by RegistrationFormJoinTeam is not defined
+         delete value.jTeam;
+
          dispatch('submit', event);
      }
  }