diff --git a/core/src/index/knowhere/knowhere/index/vector_index/IndexIVF.cpp b/core/src/index/knowhere/knowhere/index/vector_index/IndexIVF.cpp
index dff6dd62cc4fa2a8df0d9b6119647323cb09e3e5..6da5db38ecd0758c43e6b98b5aa92a275bb8f465 100644
--- a/core/src/index/knowhere/knowhere/index/vector_index/IndexIVF.cpp
+++ b/core/src/index/knowhere/knowhere/index/vector_index/IndexIVF.cpp
@@ -221,11 +221,8 @@ IVF::search_impl(int64_t n, const float* data, int64_t k, float* distances, int6
     faiss::ivflib::search_with_parameters(index_.get(), n, (float*)data, k, distances, labels, params.get());
     stdclock::time_point after = stdclock::now();
     double search_cost = (std::chrono::duration<double, std::micro>(after - before)).count();
-    KNOWHERE_LOG_DEBUG << "K=" << k
-                       << " NQ=" << n
-                       << " NL=" << faiss::indexIVF_stats.nlist
-                       << " ND=" << faiss::indexIVF_stats.ndis
-                       << " NH=" << faiss::indexIVF_stats.nheap_updates
+    KNOWHERE_LOG_DEBUG << "K=" << k << " NQ=" << n << " NL=" << faiss::indexIVF_stats.nlist
+                       << " ND=" << faiss::indexIVF_stats.ndis << " NH=" << faiss::indexIVF_stats.nheap_updates
                        << " Q=" << faiss::indexIVF_stats.quantization_time
                        << " S=" << faiss::indexIVF_stats.search_time;
     faiss::indexIVF_stats.quantization_time = 0;