diff --git a/tools/testing/selftests/bpf/prog_tests/arg_parsing.c b/tools/testing/selftests/bpf/prog_tests/arg_parsing.c
index fbf0d9c2f58b..e27d66b75fb1 100644
--- a/tools/testing/selftests/bpf/prog_tests/arg_parsing.c
+++ b/tools/testing/selftests/bpf/prog_tests/arg_parsing.c
@@ -144,6 +144,9 @@ static void test_parse_test_list_file(void)
 	if (!ASSERT_OK(ferror(fp), "prepare tmp"))
 		goto out_fclose;
 
+	if (!ASSERT_OK(fsync(fileno(fp)), "fsync tmp"))
+		goto out_fclose;
+
 	init_test_filter_set(&set);
 
 	if (!ASSERT_OK(parse_test_list_file(tmpfile, &set, true), "parse file"))