diff --git a/t/t5523-push-upstream.sh b/t/t5523-push-upstream.sh
index 4a7b98b478..d6981ba304 100755
--- a/t/t5523-push-upstream.sh
+++ b/t/t5523-push-upstream.sh
@@ -83,7 +83,7 @@ test_expect_success 'progress messages do not go to non-tty' '
 
 	# skip progress messages, since stderr is non-tty
 	git push -u upstream master >out 2>err &&
-	! grep "Writing objects" err
+	test_i18ngrep ! "Writing objects" err
 '
 
 test_expect_success 'progress messages go to non-tty (forced)' '
@@ -98,15 +98,15 @@ test_expect_success TTY 'push -q suppresses progress' '
 	ensure_fresh_upstream &&
 
 	test_terminal git push -u -q upstream master >out 2>err &&
-	! grep "Writing objects" err
+	test_i18ngrep ! "Writing objects" err
 '
 
 test_expect_success TTY 'push --no-progress suppresses progress' '
 	ensure_fresh_upstream &&
 
 	test_terminal git push -u --no-progress upstream master >out 2>err &&
-	! grep "Unpacking objects" err &&
-	! grep "Writing objects" err
+	test_i18ngrep ! "Unpacking objects" err &&
+	test_i18ngrep ! "Writing objects" err
 '
 
 test_expect_success TTY 'quiet push' '