diff --git a/cpp/src/core/unittest/test_ivf.cpp b/cpp/src/core/unittest/test_ivf.cpp
index b25f230c0f66331ef491d6a8eaf5a36251c87113..3c403f690c7f9229c28786f3c8647622207776ad 100644
--- a/cpp/src/core/unittest/test_ivf.cpp
+++ b/cpp/src/core/unittest/test_ivf.cpp
@@ -243,23 +243,23 @@ TEST_P(IVFTest, hybrid) {
         hybrid_1_idx->UnsetQuantizer();
     }
 
-//    {
-//        auto hybrid_2_idx = std::make_shared<knowhere::IVFSQHybrid>(device_id);
-//
-//        auto binaryset = index_->Serialize();
-//        hybrid_2_idx->Load(binaryset);
-//
-//        auto quantizer_conf = std::make_shared<knowhere::QuantizerCfg>();
-//        quantizer_conf->mode = 1;
-//        quantizer_conf->gpu_id = device_id;
-//        auto q = hybrid_2_idx->LoadQuantizer(quantizer_conf);
-//        quantizer_conf->mode = 2;
-//        hybrid_2_idx->LoadData(q, quantizer_conf);
-//
-//        auto result = hybrid_2_idx->Search(query_dataset, conf);
-//        AssertAnns(result, nq, conf->k);
-//        PrintResult(result, nq, k);
-//    }
+    //    {
+    //        auto hybrid_2_idx = std::make_shared<knowhere::IVFSQHybrid>(device_id);
+    //
+    //        auto binaryset = index_->Serialize();
+    //        hybrid_2_idx->Load(binaryset);
+    //
+    //        auto quantizer_conf = std::make_shared<knowhere::QuantizerCfg>();
+    //        quantizer_conf->mode = 1;
+    //        quantizer_conf->gpu_id = device_id;
+    //        auto q = hybrid_2_idx->LoadQuantizer(quantizer_conf);
+    //        quantizer_conf->mode = 2;
+    //        hybrid_2_idx->LoadData(q, quantizer_conf);
+    //
+    //        auto result = hybrid_2_idx->Search(query_dataset, conf);
+    //        AssertAnns(result, nq, conf->k);
+    //        PrintResult(result, nq, k);
+    //    }
 }
 
 // TEST_P(IVFTest, gpu_to_cpu) {
diff --git a/cpp/unittest/db/test_db.cpp b/cpp/unittest/db/test_db.cpp
index aaf0b7752cc4f4194ac0bf554f86b48f3682bfd6..9e2730a8dddfd1f3bb112cc75541741671ab11c7 100644
--- a/cpp/unittest/db/test_db.cpp
+++ b/cpp/unittest/db/test_db.cpp
@@ -315,7 +315,7 @@ TEST_F(DBTest, SEARCH_TEST) {
         stat = db_->Query(TABLE_NAME, file_ids, k, nq, 10, xq.data(), dates, results);
         ASSERT_TRUE(stat.ok());
     }
-#endif-
+#endif
 }
 
 TEST_F(DBTest, PRELOADTABLE_TEST) {