diff --git a/app/notify_client/job_api_client.py b/app/notify_client/job_api_client.py
index dc3250ef4..bd9f06d57 100644
--- a/app/notify_client/job_api_client.py
+++ b/app/notify_client/job_api_client.py
@@ -1,3 +1,4 @@
+from collections import defaultdict
 
 from notifications_python_client.base import BaseAPIClient
 from app.notify_client import _attach_current_user
@@ -16,12 +17,7 @@ class JobApiClient(BaseAPIClient):
 
     @staticmethod
     def __convert_statistics(job):
-        results = {
-            'sending': 0,
-            'delivered': 0,
-            'failed': 0,
-            'requested': 0
-        }
+        results = defaultdict(int)
         if 'statistics' in job:
             for outcome in job['statistics']:
                 if outcome['status'] in ['failed', 'technical-failure', 'temporary-failure', 'permanent-failure']: