diff --git a/transport-helper.c b/transport-helper.c
index 31883b244e..ed0543f1ad 100644
--- a/transport-helper.c
+++ b/transport-helper.c
@@ -1184,7 +1184,9 @@ static int push_refs_with_export(struct transport *transport,
 
 	if (data->export_marks) {
 		strbuf_addf(&buf, "%s.tmp", data->export_marks);
-		rename(buf.buf, data->export_marks);
+		if (rename(buf.buf, data->export_marks))
+			warning_errno(_("could not rename '%s' to '%s'"),
+				      buf.buf, data->export_marks);
 		strbuf_release(&buf);
 	}