diff --git a/internal/datacoord/meta.go b/internal/datacoord/meta.go
index 066b75ddaf..9bcb0d9537 100644
--- a/internal/datacoord/meta.go
+++ b/internal/datacoord/meta.go
@@ -38,7 +38,7 @@ type meta struct {
 }
 
 // NewMeta create meta from provided `kv.TxnKV`
-func NewMeta(kv kv.TxnKV) (*meta, error) {
+func newMeta(kv kv.TxnKV) (*meta, error) {
 	mt := &meta{
 		client:      kv,
 		collections: make(map[UniqueID]*datapb.CollectionInfo),
diff --git a/internal/datacoord/meta_test.go b/internal/datacoord/meta_test.go
index d1e2d97b4c..d0651345c3 100644
--- a/internal/datacoord/meta_test.go
+++ b/internal/datacoord/meta_test.go
@@ -124,14 +124,14 @@ func TestMeta_Basic(t *testing.T) {
 		// inject error for `Save`
 		memoryKV := memkv.NewMemoryKV()
 		fkv := &saveFailKV{TxnKV: memoryKV}
-		meta, err := NewMeta(fkv)
+		meta, err := newMeta(fkv)
 		assert.Nil(t, err)
 
 		err = meta.AddSegment(NewSegmentInfo(&datapb.SegmentInfo{}))
 		assert.NotNil(t, err)
 
 		fkv2 := &removeFailKV{TxnKV: memoryKV}
-		meta, err = NewMeta(fkv2)
+		meta, err = newMeta(fkv2)
 		assert.Nil(t, err)
 		// nil, since no segment yet
 		err = meta.DropSegment(0)
diff --git a/internal/datacoord/mock_test.go b/internal/datacoord/mock_test.go
index 7bdfad89b9..615004649f 100644
--- a/internal/datacoord/mock_test.go
+++ b/internal/datacoord/mock_test.go
@@ -34,7 +34,7 @@ import (
 
 func newMemoryMeta(allocator allocator) (*meta, error) {
 	memoryKV := memkv.NewMemoryKV()
-	return NewMeta(memoryKV)
+	return newMeta(memoryKV)
 }
 
 var _ allocator = (*MockAllocator)(nil)
diff --git a/internal/datacoord/segment_manager_test.go b/internal/datacoord/segment_manager_test.go
index c99fb4e058..07a5b410c6 100644
--- a/internal/datacoord/segment_manager_test.go
+++ b/internal/datacoord/segment_manager_test.go
@@ -397,7 +397,7 @@ func TestTryToSealSegment(t *testing.T) {
 		mockAllocator := newMockAllocator()
 		memoryKV := memkv.NewMemoryKV()
 		fkv := &saveFailKV{TxnKV: memoryKV}
-		meta, err := NewMeta(memoryKV)
+		meta, err := newMeta(memoryKV)
 
 		assert.Nil(t, err)
 
@@ -423,7 +423,7 @@ func TestTryToSealSegment(t *testing.T) {
 		mockAllocator := newMockAllocator()
 		memoryKV := memkv.NewMemoryKV()
 		fkv := &saveFailKV{TxnKV: memoryKV}
-		meta, err := NewMeta(memoryKV)
+		meta, err := newMeta(memoryKV)
 
 		assert.Nil(t, err)
 
diff --git a/internal/datacoord/server.go b/internal/datacoord/server.go
index 2892b0aef3..d44cdd39a8 100644
--- a/internal/datacoord/server.go
+++ b/internal/datacoord/server.go
@@ -287,7 +287,7 @@ func (s *Server) initMeta() error {
 		}
 
 		s.kvClient = etcdKV
-		s.meta, err = NewMeta(s.kvClient)
+		s.meta, err = newMeta(s.kvClient)
 		if err != nil {
 			return err
 		}