diff --git a/tester/v1/openapi.yaml b/tester/v1/openapi.yaml
index b87547b..a14a761 100644
--- a/tester/v1/openapi.yaml
+++ b/tester/v1/openapi.yaml
@@ -600,6 +600,7 @@ components:
         solved_count:
           type: integer
           format: int32
+
     ListProblemsResponse:
       type: object
       required: