diff --git a/packages/vjudge/src/model.ts b/packages/vjudge/src/model.ts
index a63371ecc..506b2273a 100644
--- a/packages/vjudge/src/model.ts
+++ b/packages/vjudge/src/model.ts
@@ -57,7 +57,7 @@ class Service {
                 await sleep(5000);
             }
             page++;
-            pids = await this.api.listProblem(page);
+            pids = await this.api.listProblem(page, resync);
         }
     }