diff --git a/Dockerfile.alpine b/Dockerfile.alpine
index 7b03d24..b539b2d 100644
--- a/Dockerfile.alpine
+++ b/Dockerfile.alpine
@@ -1,5 +1,7 @@
 FROM alpine:3.7
 
+ARG PEERTUBE_VER=develop
+
 ENV UID=991 GID=991 \
         HTTPS=false \
         HOSTNAME=peertube.localhost \