diff --git a/tests/qtest/qos-test.c b/tests/qtest/qos-test.c
index 33cdada380..566cb3b00b 100644
--- a/tests/qtest/qos-test.c
+++ b/tests/qtest/qos-test.c
@@ -185,7 +185,7 @@ static void run_one_test(const void *arg)
 static void subprocess_run_one_test(const void *arg)
 {
     const gchar *path = arg;
-    g_test_trap_subprocess(path, 0,
+    g_test_trap_subprocess(path, 180 * G_USEC_PER_SEC,
                            G_TEST_SUBPROCESS_INHERIT_STDOUT |
                            G_TEST_SUBPROCESS_INHERIT_STDERR);
     g_test_trap_assert_passed();