diff --git a/config/default.schema.json b/config/default.schema.json
index ae25f4a587e..0afec50e1cf 100644
--- a/config/default.schema.json
+++ b/config/default.schema.json
@@ -820,6 +820,9 @@
 					"default": 7200,
 					"description": "If Session Valid time is smaller than this, a new session is created on request."
 				}
+			},
+			"default": {
+				"PAD_URI": "https://dbildungscloud.de/etherpad/p"
 			}
 		},
 		"NEXTCLOUD_BASE_URL": {