diff --git a/INSTALL.md b/INSTALL.md
index b5f6871c..6974e1ee 100644
--- a/INSTALL.md
+++ b/INSTALL.md
@@ -84,7 +84,7 @@ to build Alacritty. Here's an apt command that should install all of them. If
 something is still found to be missing, please open an issue.
 
 ```sh
-apt install cmake pkg-config libfreetype6-dev libfontconfig1-dev libxcb-xfixes0-dev libxkbcommon-dev python3
+apt install cmake g++ pkg-config libfreetype6-dev libfontconfig1-dev libxcb-xfixes0-dev libxkbcommon-dev python3
 ```
 
 #### Arch Linux