diff --git a/plugins/provisioners/docker/cap/debian/docker_install.rb b/plugins/provisioners/docker/cap/debian/docker_install.rb
index 4e4a2ae6e..2ab526b51 100644
--- a/plugins/provisioners/docker/cap/debian/docker_install.rb
+++ b/plugins/provisioners/docker/cap/debian/docker_install.rb
@@ -15,7 +15,7 @@ module VagrantPlugins
               comm.sudo("apt-get update -y")
               comm.sudo("apt-get install -y --force-yes -q curl")
               comm.sudo("curl -sSL https://get.docker.com/gpg | apt-key add -")
-              comm.sudo("echo deb http://get.docker.com/ubuntu docker main > /etc/apt/sources.list.d/docker.list")
+              comm.sudo("echo deb https://get.docker.com/ubuntu docker main > /etc/apt/sources.list.d/docker.list")
               comm.sudo("apt-get update")
               comm.sudo("echo lxc lxc/directory string /var/lib/lxc | debconf-set-selections")
               comm.sudo("apt-get install -y --force-yes -q xz-utils #{package} -o Dpkg::Options::='--force-confdef' -o Dpkg::Options::='--force-confold'")