diff --git a/Dockerfile b/Dockerfile
index 5720842..944ad88 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -4,11 +4,17 @@ ENV LANG="en_US.UTF-8" \
   LC_ALL="C.UTF-8" \
   LANGUAGE="en_US.UTF-8" \
   TERM="xterm" \
+  ACTION="" \
   PORTAINER_USER="root" \
   PORTAINER_PASSWORD="password" \
   PORTAINER_URL="http://example.com:9000" \
+  PORTAINER_STACK_NAME="" \
+  DOCKER_COMPOSE_FILE="" \
   PORTAINER_PRUNE="false" \
   PORTAINER_ENDPOINT="1"
+  HTTPIE_VERIFY_SSL="yes" \
+  VERBOSE_MODE="false" \
+  DEBUG_MODE="false"
 
 RUN apk --update add \
   bash \