diff --git a/docker-cloud/installing-cli.md b/docker-cloud/installing-cli.md
index 87353a17b0..4647006203 100644
--- a/docker-cloud/installing-cli.md
+++ b/docker-cloud/installing-cli.md
@@ -42,6 +42,8 @@ Open your terminal or command shell and execute the following command:
 ```bash
 $ pip install docker-cloud
 ```
+If you encounter errors on Linux machines, make sure that `python-dev` is installed.
+For example, on Ubuntu, run the following command: `apt-get install python-dev`
 
 #### Install on macOS