diff --git a/manual/extension/setup_seadoc.md b/manual/extension/setup_seadoc.md
index 4ee58c42..caee3e7f 100644
--- a/manual/extension/setup_seadoc.md
+++ b/manual/extension/setup_seadoc.md
@@ -50,7 +50,6 @@ The easiest way to deployment SeaDoc is to deploy it with Seafile server on the
     COMPOSE_FILE='seafile-server.yml,caddy.yml,seadoc.yml'
 
     ENABLE_SEADOC=true
-    SEADOC_SERVER_URL=https://seafile.example.com/sdoc-server
     ```
 
 3. Start SeaDoc server server with the following command
diff --git a/manual/repo/docker/seadoc.yml b/manual/repo/docker/seadoc.yml
index a64374bc..060365fc 100644
--- a/manual/repo/docker/seadoc.yml
+++ b/manual/repo/docker/seadoc.yml
@@ -16,7 +16,7 @@ services:
       - TIME_ZONE=${TIME_ZONE:-Etc/UTC}
       - JWT_PRIVATE_KEY=${JWT_PRIVATE_KEY:?Variable is not set or empty}
       - NON_ROOT=${NON_ROOT:-false}
-      - SEAHUB_SERVICE_URL=${SEAFILE_SERVER_PROTOCOL:-http}://${SEAFILE_SERVER_HOSTNAME:?Variable is not set or empty}
+      - SEAHUB_SERVICE_URL=${SEAFILE_SERVICE_URL:-http://seafile}
     labels:
       caddy: ${SEAFILE_SERVER_PROTOCOL:-http}://${SEAFILE_SERVER_HOSTNAME:?Variable is not set or empty}
       caddy.@ws.0_header: "Connection *Upgrade*"
diff --git a/manual/repo/docker/seadoc/1.0/standalone/seadoc.yml b/manual/repo/docker/seadoc/1.0/standalone/seadoc.yml
index b375f6a9..604de3bc 100644
--- a/manual/repo/docker/seadoc/1.0/standalone/seadoc.yml
+++ b/manual/repo/docker/seadoc/1.0/standalone/seadoc.yml
@@ -16,7 +16,7 @@ services:
       - TIME_ZONE=${TIME_ZONE:-Etc/UTC}
       - NON_ROOT=${NON_ROOT:-false}
       - JWT_PRIVATE_KEY=${JWT_PRIVATE_KEY:?Variable is not set or empty}
-      - SEAHUB_SERVICE_URL=${SEAFILE_SERVER_PROTOCOL:-http}://${SEAFILE_SERVER_HOSTNAME:?Variable is not set or empty}
+      - SEAHUB_SERVICE_URL=${SEAFILE_SERVICE_URL:-${SEAFILE_SERVER_PROTOCOL:-http}://${SEAFILE_SERVER_HOSTNAME:?Variable is not set or empty}}
     networks:
       - seafile-net