diff --git a/cpp/src/utils/ValidationUtil.cpp b/cpp/src/utils/ValidationUtil.cpp
index b4bbd3346a3b383e89e9d828301968ee03277410..65cd81e6705cce3685c919fea217e97bb0ee22f4 100644
--- a/cpp/src/utils/ValidationUtil.cpp
+++ b/cpp/src/utils/ValidationUtil.cpp
@@ -7,7 +7,7 @@ namespace zilliz {
 namespace milvus {
 namespace server {
 
-constexpr size_t table_name_size_limit = 16384;
+constexpr size_t table_name_size_limit = 255;
 constexpr int64_t table_dimension_limit = 16384;
 
 ServerError