diff --git a/tests/qtest/meson.build b/tests/qtest/meson.build
index d22434b14e..d22aec6734 100644
--- a/tests/qtest/meson.build
+++ b/tests/qtest/meson.build
@@ -9,7 +9,7 @@ slow_qtests = {
   'test-hmp' : 240,
   'pxe-test': 600,
   'prom-env-test': 360,
-  'boot-serial-test': 240,
+  'boot-serial-test': 360,
   'qos-test': 120,
 }