diff --git a/webtrees/config.json b/webtrees/config.json
index d3887e2e5..d441cf752 100644
--- a/webtrees/config.json
+++ b/webtrees/config.json
@@ -23,7 +23,7 @@
   ],
   "name": "Webtrees",
   "options": {
-    "ssl": false,
+    "ssl_under_dev": false,
     "certfile": "fullchain.pem",
     "keyfile": "privkey.pem",
     "LANG": "en-US",
@@ -39,7 +39,7 @@
     "443/tcp": "Https web interface"
   },
   "schema": {
-    "ssl": "bool",
+    "ssl_under_dev": "bool",
     "certfile": "str",
     "keyfile": "str",
     "LANG": "str",