diff --git a/storage/mysql/tree_storage.go b/storage/mysql/tree_storage.go
index 8207b722ff..dc4e32ede9 100644
--- a/storage/mysql/tree_storage.go
+++ b/storage/mysql/tree_storage.go
@@ -326,7 +326,6 @@ func checkResultOkAndRowCountIs(res sql.Result, err error, count int64) error {
 	return nil
 }
 
-// getSubtrees returns a GetSubtreesFunc.
 func (t *treeTX) getSubtreesFunc(ctx context.Context) cache.GetSubtreesFunc {
 	return func(ids [][]byte) ([]*storagepb.SubtreeProto, error) {
 		return t.getSubtrees(ctx, ids)