diff --git a/app.json b/app.json
index 18846d9..2e70f01 100644
--- a/app.json
+++ b/app.json
@@ -46,17 +46,17 @@
       "required": false
     },
     "WHOOGLE_ALT_TW": {
-      "description": "The site to use as a replacement for twitter.com when site alternatives are enabled in the config."
+      "description": "The site to use as a replacement for twitter.com when site alternatives are enabled in the config.",
       "value": "",
       "required": false
     },
     "WHOOGLE_ALT_YT": {
-      "description": "The site to use as a replacement for youtube.com when site alternatives are enabled in the config."
+      "description": "The site to use as a replacement for youtube.com when site alternatives are enabled in the config.",
       "value": "",
       "required": false
     },
     "WHOOGLE_ALT_IG": {
-      "description": "The site to use as a replacement for instagram.com when site alternatives are enabled in the config."
+      "description": "The site to use as a replacement for instagram.com when site alternatives are enabled in the config.",
       "value": "",
       "required": false
     }