diff --git a/internal/core/src/segcore/reduce_c.cpp b/internal/core/src/segcore/reduce_c.cpp
index 9e11751080..2ef9aa7b1a 100644
--- a/internal/core/src/segcore/reduce_c.cpp
+++ b/internal/core/src/segcore/reduce_c.cpp
@@ -9,8 +9,11 @@
 // is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
 // or implied. See the License for the specific language governing permissions and limitations under the License
 
-#include <vector>
+#ifndef __APPLE__
+#include <malloc.h>
+#endif
 
+#include <vector>
 #include "Reduce.h"
 #include "common/CGoHelper.h"
 #include "common/QueryResult.h"
@@ -84,4 +87,7 @@ DeleteSearchResultDataBlobs(CSearchResultDataBlobs cSearchResultDataBlobs) {
     }
     auto search_result_data_blobs = reinterpret_cast<milvus::segcore::SearchResultDataBlobs*>(cSearchResultDataBlobs);
     delete search_result_data_blobs;
+#ifdef __linux__
+    malloc_trim(0);
+#endif
 }