diff --git a/image/Dockerfile b/image/Dockerfile
index e7c5253..032710f 100644
--- a/image/Dockerfile
+++ b/image/Dockerfile
@@ -30,4 +30,4 @@ RUN ./sbin/install-service \
   && apt-get clean && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
 
 # Add default env variables
-ADD env.yml /etc/env.yml
+ADD env.yaml /etc/env.yaml
diff --git a/image/env.yml b/image/env.yaml
similarity index 100%
rename from image/env.yml
rename to image/env.yaml