diff --git a/docs/installation.md b/docs/installation.md
index 5cc0e03f4..f00bf0836 100644
--- a/docs/installation.md
+++ b/docs/installation.md
@@ -112,7 +112,7 @@ OS Specific steps are listed first, the [Common](#common) section below is neces
     
 
     ``` bash
-    sudo apt-get install python3-venv libatlas-base-dev
+    sudo apt-get install python3-venv libatlas-base-dev cmake
     # Use pywheels.org to speed up installation
     sudo echo "[global]\nextra-index-url=https://www.piwheels.org/simple" > tee /etc/pip.conf