diff --git a/functional_tests/test_plinth.py b/functional_tests/test_plinth.py
index 3012b7d14..bac46d939 100644
--- a/functional_tests/test_plinth.py
+++ b/functional_tests/test_plinth.py
@@ -15,6 +15,7 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #
 
+import pytest
 from pytest_bdd import scenarios
 
 from step_definitions.application import *
@@ -23,4 +24,7 @@ from step_definitions.service import *
 from step_definitions.site import *
 from step_definitions.system import *
 
+# Mark all tests are functional
+pytestmark = pytest.mark.functional
+
 scenarios('features')