diff --git a/novnc/Dockerfile b/novnc/Dockerfile
index a6d1f3a..d2b9b3e 100644
--- a/novnc/Dockerfile
+++ b/novnc/Dockerfile
@@ -2,14 +2,7 @@
 FROM alpine/base
 USER root
 
-# ENV variables
-# Required
-ENV MYVNC_VNCCLIENT_HOST=
-ENV MYVNC_VNCCLIENT_PORT=
-# Optional
-ENV MYVNC_VNCSERVER_PORT=
-
-# Run
+# Install ssh client
 RUN apk add --no-cache \
     openssh-client \
     && <<- '01-init' cat >>/app/init.d/01-init.sh