diff --git a/DockerFile b/Dockerfile
similarity index 100%
rename from DockerFile
rename to Dockerfile
diff --git a/README.md b/README.md
index 6a8ab3e..26616b6 100644
--- a/README.md
+++ b/README.md
@@ -20,5 +20,5 @@ bash -c ./src/update-ip.sh
 ## build local image
 
 ``` bash
-docker build -f DockerFile -t git.limbosolutions.com/mylimbo/cloudflare-updatedns:latest .
+docker build -t git.limbosolutions.com/mylimbo/cloudflare-updatedns:latest .
 ```