From 3665ac54cf7a881ef9ceba50672e6bb557475f24 Mon Sep 17 00:00:00 2001
From: Kazuki Suda <kazuki.suda@gmail.com>
Date: Wed, 16 May 2018 15:14:30 +0900
Subject: [PATCH] Fix lost environment variables (#8527)

---
 content/en/docs/tasks/tools/install-kubeadm.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/content/en/docs/tasks/tools/install-kubeadm.md b/content/en/docs/tasks/tools/install-kubeadm.md
index f1501f4459..5f021eb6e5 100644
--- a/content/en/docs/tasks/tools/install-kubeadm.md
+++ b/content/en/docs/tasks/tools/install-kubeadm.md
@@ -106,8 +106,8 @@ or install Docker CE 17.03 from Docker's repositories for Ubuntu or Debian:
 apt-get update
 apt-get install -y apt-transport-https ca-certificates curl software-properties-common
 curl -fsSL https://download.docker.com/linux/ubuntu/gpg | apt-key add -
-add-apt-repository "deb https://download.docker.com/linux/$(. /etc/os-release; echo "") $(lsb_release -cs) stable"
-apt-get update && apt-get install -y docker-ce=$(apt-cache madison docker-ce | grep 17.03 | head -1 | awk '{print }')
+add-apt-repository "deb https://download.docker.com/linux/$(. /etc/os-release; echo "$ID") $(lsb_release -cs) stable"
+apt-get update && apt-get install -y docker-ce=$(apt-cache madison docker-ce | grep 17.03 | head -1 | awk '{print $3}')
 ```
 {{% /tab %}}
 {{% tab name="CentOS, RHEL or Fedora" %}}