diff --git a/app/notify_client/job_api_client.py b/app/notify_client/job_api_client.py
index 115ece59e..ee9dc0022 100644
--- a/app/notify_client/job_api_client.py
+++ b/app/notify_client/job_api_client.py
@@ -103,7 +103,7 @@ class JobApiClient(NotifyAdminAPIClient):
         redis_client.set(
             'has_jobs-{}'.format(service_id),
             b'true',
-            ex=cache.DEFAULT_TTL,
+            ex=int(cache.DEFAULT_TTL),
         )
 
         return job