diff --git a/builtin/add.c b/builtin/add.c
index b79336d712..d0b9151438 100644
--- a/builtin/add.c
+++ b/builtin/add.c
@@ -281,7 +281,7 @@ static int edit_patch(int argc, const char **argv, const char *prefix)
 	argc = setup_revisions(argc, argv, &rev, NULL);
 	rev.diffopt.output_format = DIFF_FORMAT_PATCH;
 	DIFF_OPT_SET(&rev.diffopt, IGNORE_DIRTY_SUBMODULES);
-	out = open(file, O_CREAT | O_WRONLY, 0644);
+	out = open(file, O_CREAT | O_WRONLY, 0666);
 	if (out < 0)
 		die (_("Could not open '%s' for writing."), file);
 	rev.diffopt.file = xfdopen(out, "w");