diff --git a/docker-compose.yaml b/docker-compose.yaml
index e6b0cfd..20e1343 100644
--- a/docker-compose.yaml
+++ b/docker-compose.yaml
@@ -26,7 +26,7 @@ services:
       - "/var/run/docker.sock:/var/run/docker.sock:ro"
       - "/docker/traefik_v2x/config:/etc/traefik"
     environment:
-      - "EXEC_PATH=/etc/traefik/ipv64-dns-challenge.sh"
+      - "EXEC_PATH_FILE=/etc/traefik/ipv64-dns-challenge.sh"
     ports:
       - "8888:8080"
       - "80:80"