diff --git a/deploy-to-docker-containers.md b/deploy-to-docker-containers.md
index 63a269d..03433b8 100644
--- a/deploy-to-docker-containers.md
+++ b/deploy-to-docker-containers.md
@@ -69,7 +69,7 @@ docker run --rm  -itd  \
 ```sh
 docker  exec \
     -e CF_Email=xxx@exmaple.com \
-    -e CF_Token=xxxxxxxxxx  \
+    -e CF_Key=xxxxxxxxxx  \
     acme.sh --issue -d example.com  --dns dns_cf
 ```