diff --git a/tests/common/reboot.py b/tests/common/reboot.py
index 38513b8e5b4..4e63f660ae3 100644
--- a/tests/common/reboot.py
+++ b/tests/common/reboot.py
@@ -252,7 +252,7 @@ def reboot(duthost, localhost, reboot_type='cold', delay=10,
         # time it takes for containers to come back up. Therefore, add 5
         # minutes to the maximum wait time. If it's ready sooner, then the
         # function will return sooner.
-        pytest_assert(wait_until(wait + 300, 20, 0, duthost.critical_services_fully_started),
+        pytest_assert(wait_until(wait + 400, 20, 0, duthost.critical_services_fully_started),
                       "All critical services should be fully started!")
         wait_critical_processes(duthost)