diff --git a/core/unittest/wrapper/test_wrapper.cpp b/core/unittest/wrapper/test_wrapper.cpp
index ba3ed0f1a1..65e672e8c6 100644
--- a/core/unittest/wrapper/test_wrapper.cpp
+++ b/core/unittest/wrapper/test_wrapper.cpp
@@ -85,7 +85,7 @@ INSTANTIATE_TEST_CASE_P(
 // std::make_tuple(milvus::engine::IndexType::NSG_MIX, "Default", 128, 250000, 10, 10),
 #endif
         // std::make_tuple(milvus::engine::IndexType::SPTAG_KDT_RNT_CPU, "Default", 128, 100, 10, 10),
-        // std::make_tuple(milvus::engine::IndexType::SPTAG_BKT_RNT_CPU, "Default", 128, 100, 10, 10),
+        // std::make_tuple(milvus::engine::IndexType::SPTAG_BKT_RNT_CPU, "Default", 126, 100, 10, 10),
         std::make_tuple(milvus::engine::IndexType::HNSW, "Default", 64, 10000, 5, 10),
         std::make_tuple(milvus::engine::IndexType::FAISS_IDMAP, "Default", 64, 1000, 10, 10),
         std::make_tuple(milvus::engine::IndexType::FAISS_IVFFLAT_CPU, "Default", 64, 1000, 10, 10),