diff --git a/README.md b/README.md
index c7e0acc..ac55bd5 100644
--- a/README.md
+++ b/README.md
@@ -167,7 +167,6 @@ version: '3'
 services:
   firefox:
     image: jlesage/firefox
-    build: .
     ports:
       - "5800:5800"
     volumes: