diff --git a/internal/proxy/meta_cache.go b/internal/proxy/meta_cache.go
index 0aa1d43178..7858850958 100644
--- a/internal/proxy/meta_cache.go
+++ b/internal/proxy/meta_cache.go
@@ -274,6 +274,7 @@ func (m *MetaCache) GetPartitionInfo(ctx context.Context, collectionName string,
 	}, nil
 }
 
+// Get the collection information from rootcoord.
 func (m *MetaCache) describeCollection(ctx context.Context, collectionName string) (*milvuspb.DescribeCollectionResponse, error) {
 	req := &milvuspb.DescribeCollectionRequest{
 		Base: &commonpb.MsgBase{