diff --git a/DockerEntrypoint.sh b/DockerEntrypoint.sh
index dfd85ba7..7511d2ea 100644
--- a/DockerEntrypoint.sh
+++ b/DockerEntrypoint.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 
 # Start fail2ban
-[ $X_UI_ENABLE_FAIL2BAN == "true" ] && fail2ban-client -x start
+[ $XUI_ENABLE_FAIL2BAN == "true" ] && fail2ban-client -x start
 
 # Run x-ui
 exec /app/x-ui
diff --git a/Dockerfile b/Dockerfile
index 62bb908c..4a15f98d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -48,7 +48,7 @@ RUN chmod +x \
   /app/x-ui \
   /usr/bin/x-ui
 
-ENV X_UI_ENABLE_FAIL2BAN="true"
+ENV XUI_ENABLE_FAIL2BAN="true"
 VOLUME [ "/etc/x-ui" ]
 CMD [ "./x-ui" ]
 ENTRYPOINT [ "/app/DockerEntrypoint.sh" ]
diff --git a/docker-compose.yml b/docker-compose.yml
index 50cad52c..e27a735e 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -8,7 +8,7 @@ services:
       - $PWD/cert/:/root/cert/
     environment:
       XRAY_VMESS_AEAD_FORCED: "false"
-      X_UI_ENABLE_FAIL2BAN: "true"
+      XUI_ENABLE_FAIL2BAN: "true"
     tty: true
     network_mode: host
     restart: unless-stopped