diff --git a/README.md b/README.md
index 2f608b81b..1e658d180 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,7 @@
 to prepare a new host:
 
 ```
+sudo apt-get install software-properties-common
 sudo apt-add-repository -y ppa:nginx/stable
 sudo apt-get update
 sudo apt-get install -y git python-virtualenv python-dev phantomjs