diff --git a/internal/core/src/common/Utils.h b/internal/core/src/common/Utils.h
index 316ec7fa6618783e12220ab969767a90f9079cc9..bb7b548c4bac29fdfb4ecac6dd95eb1e03ea06eb 100644
--- a/internal/core/src/common/Utils.h
+++ b/internal/core/src/common/Utils.h
@@ -12,6 +12,7 @@
 #pragma once
 
 #include <string>
+#include "exceptions/EasyAssert.h"
 
 namespace milvus {
 inline bool
@@ -45,4 +46,19 @@ PostfixMatch(const std::string& str, const std::string& postfix) {
     //    }
     return true;
 }
+
+inline int64_t
+upper_align(int64_t value, int64_t align) {
+    Assert(align > 0);
+    auto groups = (value + align - 1) / align;
+    return groups * align;
+}
+
+inline int64_t
+upper_div(int64_t value, int64_t align) {
+    Assert(align > 0);
+    auto groups = (value + align - 1) / align;
+    return groups;
+}
+
 }  // namespace milvus
diff --git a/internal/core/src/segcore/ConcurrentVector.h b/internal/core/src/segcore/ConcurrentVector.h
index 20b8d530c62642b99ed8b81abe9348e39e395beb..b824aa21df9dd863d378fdae69546e60e56d79fc 100644
--- a/internal/core/src/segcore/ConcurrentVector.h
+++ b/internal/core/src/segcore/ConcurrentVector.h
@@ -23,11 +23,11 @@
 
 #include <tbb/concurrent_vector.h>
 
-#include "common/Types.h"
+#include "common/FieldMeta.h"
 #include "common/Span.h"
+#include "common/Types.h"
+#include "common/Utils.h"
 #include "exceptions/EasyAssert.h"
-#include "utils/Utils.h"
-#include "common/FieldMeta.h"
 
 namespace milvus::segcore {
 
diff --git a/internal/core/src/segcore/SegmentGrowingImpl.cpp b/internal/core/src/segcore/SegmentGrowingImpl.cpp
index 59ba66cda7180a811853537c116b2d3c48c20261..a2d2f16e509c04904ff7a1949eb2fde51938e3d1 100644
--- a/internal/core/src/segcore/SegmentGrowingImpl.cpp
+++ b/internal/core/src/segcore/SegmentGrowingImpl.cpp
@@ -22,7 +22,6 @@
 #include "query/generated/ExecPlanNodeVisitor.h"
 #include "segcore/Reduce.h"
 #include "segcore/SegmentGrowingImpl.h"
-#include "utils/Utils.h"
 #include "segcore/Utils.h"
 
 namespace milvus::segcore {
diff --git a/internal/core/src/utils/Utils.h b/internal/core/src/utils/Utils.h
deleted file mode 100644
index 63f50c6b1c4de5132535ac17fb057e6b1dbf9a55..0000000000000000000000000000000000000000
--- a/internal/core/src/utils/Utils.h
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (C) 2019-2020 Zilliz. All rights reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance
-// with the License. You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software distributed under the License
-// 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
-
-#pragma once
-
-#include <cstdint>
-#include "exceptions/EasyAssert.h"
-
-namespace milvus {
-
-inline int64_t
-upper_align(int64_t value, int64_t align) {
-    Assert(align > 0);
-    auto groups = (value + align - 1) / align;
-    return groups * align;
-}
-
-inline int64_t
-upper_div(int64_t value, int64_t align) {
-    Assert(align > 0);
-    auto groups = (value + align - 1) / align;
-    return groups;
-}
-
-}  // namespace milvus
diff --git a/internal/core/unittest/test_expr.cpp b/internal/core/unittest/test_expr.cpp
index 379cbf93bb96dd43123e04fbd896d73258cd20f0..8882f98093385f1ba4f4a83e7fba440561ec8f85 100644
--- a/internal/core/unittest/test_expr.cpp
+++ b/internal/core/unittest/test_expr.cpp
@@ -16,13 +16,10 @@
 #include "query/Expr.h"
 #include "query/Plan.h"
 #include "query/PlanNode.h"
-#include "query/generated/ExprVisitor.h"
-#include "query/generated/PlanNodeVisitor.h"
 #include "query/generated/ShowPlanNodeVisitor.h"
 #include "query/generated/ExecExprVisitor.h"
 #include "segcore/SegmentGrowingImpl.h"
 #include "test_utils/DataGen.h"
-#include "utils/Utils.h"
 
 using namespace milvus;
 
diff --git a/internal/core/unittest/test_span.cpp b/internal/core/unittest/test_span.cpp
index 1cf1ec7f0a0fb4d353b1b752ce68fa85b0c88457..94a35ffee5d77f87ebccf0938dca7fd8ccad0569 100644
--- a/internal/core/unittest/test_span.cpp
+++ b/internal/core/unittest/test_span.cpp
@@ -13,7 +13,6 @@
 
 #include "segcore/SegmentGrowing.h"
 #include "test_utils/DataGen.h"
-#include "utils/Utils.h"
 
 const int64_t ROW_COUNT = 100 * 1000;