diff --git a/builtin/log.c b/builtin/log.c
index b36a01efc4..853f5d0401 100644
--- a/builtin/log.c
+++ b/builtin/log.c
@@ -1136,11 +1136,11 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix)
 		die (_("unrecognized argument: %s"), argv[1]);
 
 	if (rev.diffopt.output_format & DIFF_FORMAT_NAME)
-		die("--name-only does not make sense");
+		die(_("--name-only does not make sense"));
 	if (rev.diffopt.output_format & DIFF_FORMAT_NAME_STATUS)
-		die("--name-status does not make sense");
+		die(_("--name-status does not make sense"));
 	if (rev.diffopt.output_format & DIFF_FORMAT_CHECKDIFF)
-		die("--check does not make sense");
+		die(_("--check does not make sense"));
 
 	if (!use_patch_format &&
 		(!rev.diffopt.output_format ||
diff --git a/t/t4014-format-patch.sh b/t/t4014-format-patch.sh
index 027c13d52c..a46d88828b 100755
--- a/t/t4014-format-patch.sh
+++ b/t/t4014-format-patch.sh
@@ -614,7 +614,7 @@ echo "fatal: --name-only does not make sense" > expect.name-only
 echo "fatal: --name-status does not make sense" > expect.name-status
 echo "fatal: --check does not make sense" > expect.check
 
-test_expect_success 'options no longer allowed for format-patch' '
+test_expect_success C_LOCALE_OUTPUT 'options no longer allowed for format-patch' '
 	test_must_fail git format-patch --name-only 2> output &&
 	test_cmp expect.name-only output &&
 	test_must_fail git format-patch --name-status 2> output &&