diff --git a/docker/.env.example b/docker/.env.example
index fb815ea160..74a436b082 100644
--- a/docker/.env.example
+++ b/docker/.env.example
@@ -24,6 +24,11 @@ CONSOLE_WEB_URL=
 # Example: https://api.dify.ai
 SERVICE_API_URL=
 
+# Trigger external URL
+# used to display trigger endpoint API Base URL to the front-end.
+# Example: https://api.dify.ai
+TRIGGER_URL=
+
 # WebApp API backend Url,
 # used to declare the back-end URL for the front-end API.
 # If empty, it is the same domain.
diff --git a/docker/docker-compose.yaml b/docker/docker-compose.yaml
index 81f2a5e625..6d1f2e8352 100644
--- a/docker/docker-compose.yaml
+++ b/docker/docker-compose.yaml
@@ -8,6 +8,7 @@ x-shared-env: &shared-api-worker-env
   CONSOLE_API_URL: ${CONSOLE_API_URL:-}
   CONSOLE_WEB_URL: ${CONSOLE_WEB_URL:-}
   SERVICE_API_URL: ${SERVICE_API_URL:-}
+  TRIGGER_URL: ${TRIGGER_URL:-}
   APP_API_URL: ${APP_API_URL:-}
   APP_WEB_URL: ${APP_WEB_URL:-}
   FILES_URL: ${FILES_URL:-}