diff --git a/gpodder/views.py b/gpodder/views.py
index bd45b41..d2a985b 100644
--- a/gpodder/views.py
+++ b/gpodder/views.py
@@ -143,7 +143,7 @@ def subscriptions_by_device(request, username, deviceid):
             return JsonResponse({'add': added, 'remove': removed, 'timestamp': _now_ts(), 'update_urls': []})
         else:
             urls = list(PodcastFeed.objects.filter(user=request.user).values_list('rss_url', flat=True))
-            return JsonResponse(urls, safe=False)
+            return JsonResponse({'add': urls, 'remove': [], 'timestamp': _now_ts(), 'update_urls': []})
 
     elif request.method == 'POST':
         try:
@@ -178,7 +178,7 @@ def subscriptions_all(request, username):
         return JsonResponse({'add': added, 'remove': removed, 'timestamp': _now_ts(), 'update_urls': []})
     else:
         urls = list(PodcastFeed.objects.filter(user=request.user).values_list('rss_url', flat=True))
-        return JsonResponse(urls, safe=False)
+        return JsonResponse({'add': urls, 'remove': [], 'timestamp': _now_ts(), 'update_urls': []})
 
 
 # ---------------------------------------------------------------------------