diff --git a/core/src/scheduler/task/SearchTask.cpp b/core/src/scheduler/task/SearchTask.cpp
index 6c662f8e63bdbac288af9579215aaf2cf7f01e05..b7a1e211d2b1b23dee3f903e0e7e130de1e98efe 100644
--- a/core/src/scheduler/task/SearchTask.cpp
+++ b/core/src/scheduler/task/SearchTask.cpp
@@ -204,11 +204,6 @@ XSearchTask::Execute() {
         output_distance.resize(topk * nq);
         std::string hdr =
             "job " + std::to_string(search_job->id()) + " nq " + std::to_string(nq) + " topk " + std::to_string(topk);
-        auto str = R"(s324gagbds
-bbvcb\fds
-b
-fdb\f
-e))";
 
         try {
             // step 2: search