diff --git a/api/s5/s5.go b/api/s5/s5.go
index 320eb5c..c09f28d 100644
--- a/api/s5/s5.go
+++ b/api/s5/s5.go
@@ -641,7 +641,7 @@ func (s *S5API) accountRegister(jc jape.Context) {
 		return
 	}
 
-	setAuthCookie(jwt, jc)
+	account.SetAuthCookie(jc, jwt, s.Name())
 }
 
 func (s *S5API) accountLoginChallenge(jc jape.Context) {