diff --git a/backend/src/app/emails.clj b/backend/src/app/emails.clj
index 9033ca7145..ac55b688b9 100644
--- a/backend/src/app/emails.clj
+++ b/backend/src/app/emails.clj
@@ -127,9 +127,9 @@
 (s/def :internal.emails.invite-to-team/token ::us/string)
 
 (s/def ::invite-to-team
-  (s/keys :keys [:internal.emails.invite-to-team/invited-by
-                 :internal.emails.invite-to-team/token
-                 :internal.emails.invite-to-team/team]))
+  (s/keys :req-un [:internal.emails.invite-to-team/invited-by
+                   :internal.emails.invite-to-team/token
+                   :internal.emails.invite-to-team/team]))
 
 (def invite-to-team
   "Teams member invitation email."