diff --git a/tests/benchmark/milvus_benchmark/config.py b/tests/benchmark/milvus_benchmark/config.py
index 0a81db8910..ee1ee0bfb6 100644
--- a/tests/benchmark/milvus_benchmark/config.py
+++ b/tests/benchmark/milvus_benchmark/config.py
@@ -51,5 +51,6 @@ MINIO_BUCKET_NAME = "test"
 
 FLUSH_PRECISION = 4
 INDEX_PRECISION = 4
+SEARCH_PRECISION = 4
 COMMON_PRECISION = 4