diff --git a/docker/Pkgfile b/docker/Pkgfile
index cc3d06c81..c2fdf34aa 100644
--- a/docker/Pkgfile
+++ b/docker/Pkgfile
@@ -1,8 +1,7 @@
 # Description:  Pack, ship and run any application as a lightweight container
 # URL:          http://www.docker.com/
 # Maintainer:   James Mills, prologic at shortcircuit dot net dot au
-#
-# Depends on:   go sqlite3 cgroupfs-mount start-stop-daemon
+# Depends on:   go sqlite3 cgroupfs-mount start-stop-daemon btrfs-progs
 
 name=docker
 version=1.8.1