diff --git a/website/static/manifest.json b/website/static/manifest.json
index 3add042..a3dc73f 100644
--- a/website/static/manifest.json
+++ b/website/static/manifest.json
@@ -6,13 +6,16 @@
   "short_name": "moira",
   "icons": [{
       "src": "icons/moira_db_64.png",
-      "type": "image/png"
+      "type": "image/png",
+      "sizes": "64x64"
   }, {
       "src": "icons/moira_db_192.png",
-      "type": "image/png"
+      "type": "image/png",
+      "sizes": "192x192"
   }, {
       "src": "icons/moira_db_512.png",
-      "type": "image/png"
+      "type": "image/png",
+      "sizes": "512x512"
   }],
   "id": "moira_db",
   "start_url": "/",