diff --git a/cabot/cabotapp/jenkins.py b/cabot/cabotapp/jenkins.py
index 6e469cf..806beeb 100644
--- a/cabot/cabotapp/jenkins.py
+++ b/cabot/cabotapp/jenkins.py
@@ -1,6 +1,7 @@
 from datetime import datetime
 
 from jenkinsapi.jenkins import Jenkins
+from jenkinsapi.custom_exceptions import UnknownJob
 from celery.utils.log import get_task_logger
 from django.conf import settings
 from django.utils import timezone
@@ -14,23 +15,27 @@ def _get_jenkins_client():
 
 def get_job_status(jobname):
     ret = {
-        'active': True,
-        'succeeded': False,
+        'active': None,
+        'succeeded': None,
+        'job_number': None,
         'blocked_build_time': None,
-        'status_code': 200
     }
     client = _get_jenkins_client()
+    try:
+        job = client.get_job(jobname)
+        last_build = job.get_last_build()
 
-    job = client.get_job(jobname)
-    last_build = job.get_last_build()
+        ret['status_code'] = 200
+        ret['job_number'] = last_build.get_number()
+        ret['active'] = job.is_enabled()
+        ret['succeeded'] = (job.is_enabled()) and last_build.is_good()
 
-    ret['job_number'] = last_build.get_number()
-    ret['active'] = job.is_enabled()
-    ret['succeeded'] = (job.is_enabled()) and last_build.is_good()
-
-    if job.is_queued():
-        in_queued_since = job._data['queueItem']['inQueueSince']  # job.get_queue_item() crashes
-        time_blocked_since = datetime.utcfromtimestamp(
-            float(in_queued_since) / 1000).replace(tzinfo=timezone.utc)
-        ret['blocked_build_time'] = (timezone.now() - time_blocked_since).total_seconds()
-    return ret
+        if job.is_queued():
+            in_queued_since = job._data['queueItem']['inQueueSince']  # job.get_queue_item() crashes
+            time_blocked_since = datetime.utcfromtimestamp(
+                float(in_queued_since) / 1000).replace(tzinfo=timezone.utc)
+            ret['blocked_build_time'] = (timezone.now() - time_blocked_since).total_seconds()
+        return ret
+    except UnknownJob:
+        ret['status_code'] = 404
+        return ret
diff --git a/cabot/cabotapp/tests/tests_jenkins.py b/cabot/cabotapp/tests/tests_jenkins.py
index cf81fe0..449c171 100644
--- a/cabot/cabotapp/tests/tests_jenkins.py
+++ b/cabot/cabotapp/tests/tests_jenkins.py
@@ -7,6 +7,7 @@ from cabot.cabotapp import jenkins
 from django.utils import timezone
 from datetime import timedelta
 import jenkinsapi
+from jenkinsapi.custom_exceptions import UnknownJob
 
 class TestGetStatus(unittest.TestCase):
 
@@ -80,3 +81,19 @@ class TestGetStatus(unittest.TestCase):
             'status_code': 200
         }
         self.assertEqual(status, expected)
+
+    @patch("cabot.cabotapp.jenkins._get_jenkins_client")
+    def test_job_unknown(self, mock_jenkins):
+        self.mock_client.get_job.side_effect = UnknownJob()
+        mock_jenkins.return_value = self.mock_client
+
+        status = jenkins.get_job_status('unknown-job')
+
+        expected = {
+            'active': None,
+            'succeeded': None,
+            'job_number': None,
+            'blocked_build_time': None,
+            'status_code': 404
+        }
+        self.assertEqual(status, expected)