diff --git a/Dockerfile b/Dockerfile
index 023c6ce..5ccbbff 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,5 @@
 FROM wernight/dante
 
 # TODO: Replace 'john' and 'MyPassword' by any username/password you want.
-RUN printf 'MyPassword\nMyPassword\n' | adduser john
+ENV PASS MyPassword
+RUN printf '${PASS}\n${PASS}\n' | adduser john