diff --git a/arkindex/metrics/tests/test_metrics_api.py b/arkindex/metrics/tests/test_metrics_api.py
index ee5b51fba0cb535e25cf77ed1719339da82df0c6..70d43b33a8f4395dc076924bba27e16076497816 100644
--- a/arkindex/metrics/tests/test_metrics_api.py
+++ b/arkindex/metrics/tests/test_metrics_api.py
@@ -10,7 +10,7 @@ class TestMetricsAPI(FixtureAPITestCase):
         response = self.client.get(reverse('metrics:base-metrics'))
         self.assertEqual(response.status_code, 404)
 
-    @override_settings(PROMETHEUS_METRICS_PORT='42', PUBLIC_HOSTNAME="hostname", ARKINDEX_ENV="test")
+    @override_settings(PROMETHEUS_METRICS_PORT=42, PUBLIC_HOSTNAME="hostname", ARKINDEX_ENV="test")
     def test_metrics_base(self):
         response = self.client.get(reverse('metrics:base-metrics'), SERVER_PORT=42)
         self.assertEqual(response.status_code, 200)
diff --git a/arkindex/project/runtests.py b/arkindex/project/runtests.py
index 6fe6399de73ee72f278176bd3e721e88e0c5ae23..d4a2e44d3a796190e78dc236a7135487d9271415 100644
--- a/arkindex/project/runtests.py
+++ b/arkindex/project/runtests.py
@@ -20,6 +20,7 @@ def run():
     failures = test_runner.run_tests([
         'arkindex.documents.tests',
         'arkindex.images.tests',
+        'arkindex.metrics.tests',
         'arkindex.ponos.tests',
         'arkindex.project.tests',
         'arkindex.process.tests',