diff --git a/Makefile b/Makefile
index a444897d58..17575bd541 100644
--- a/Makefile
+++ b/Makefile
@@ -1253,7 +1253,8 @@ release:
 	SOURCE_DATE_EPOCH=$$(git log -1 --format=%at 2> /dev/null) \
 		$(MAKE) O=$(OUT) manual-html manual-text manual-pdf
 	$(MAKE) O=$(OUT) distclean
-	tar rf $(OUT).tar $(OUT)
+	tar rf $(OUT).tar --owner=0 --group=0 \
+		--mtime="$$(git log -1 --pretty=format:%ci)" $(OUT)
 	gzip -9 -c < $(OUT).tar > $(OUT).tar.gz
 	xz -9 -c < $(OUT).tar > $(OUT).tar.xz
 	rm -rf $(OUT) $(OUT).tar