diff --git a/README.md b/README.md
index 56e7159a..c647c527 100644
--- a/README.md
+++ b/README.md
@@ -577,7 +577,7 @@ accessories:
       memory: "2GB"
   redis:
     image: redis:latest
-    role:
+    roles:
       - web
     port: "36379:6379"
     volumes: