diff --git a/manual/docker/seadoc/1.0/standalone/env b/manual/docker/seadoc/1.0/standalone/env
index 42eb9a2c..f466293a 100644
--- a/manual/docker/seadoc/1.0/standalone/env
+++ b/manual/docker/seadoc/1.0/standalone/env
@@ -16,5 +16,3 @@ JWT_PRIVATE_KEY=
 
 SEAFILE_SERVER_HOSTNAME=example.seafile.com
 SEAFILE_SERVER_PROTOCOL=http
-
-SEADOC_SERVER_URL=http://example.seafile.com/sdoc-server
diff --git a/manual/extension/setup_seadoc.md b/manual/extension/setup_seadoc.md
index 62c899af..6427d81c 100644
--- a/manual/extension/setup_seadoc.md
+++ b/manual/extension/setup_seadoc.md
@@ -68,7 +68,6 @@ SeaDoc has the following deployment methods:
     | `JWT_PRIVATE_KEY`      | JWT key, the same as the config in Seafile `.env` file                                                         |  
     | `SEAFILE_SERVER_HOSTNAME`| Seafile host name                                                                                           |  
     | `SEAFILE_SERVER_PROTOCOL`| http or https                                                                                               |  
-    | `SEADOC_SERVER_URL`    | SeaDoc service URL                                                                                            |
 
     !!! note
         Please bind SeaDoc server url and ip in the load balance(or reverse proxy) configuration after starting SeaDoc server