diff --git a/handbook/troggle/troglaptop.html b/handbook/troggle/troglaptop.html
index 61f53c49d..328c51fd3 100644
--- a/handbook/troggle/troglaptop.html
+++ b/handbook/troggle/troglaptop.html
@@ -95,7 +95,7 @@ default installation is python3.9 whereas Ubuntu 22.04 gives you python3.10.
 sudo apt install sqlite3 sqlite3-doc -y
 sudo apt install survex -y
 sudo apt install software-properties-common -y
-sudo apt install git -y
+sudo apt install git gitk -y
 sudo apt install default-jdk -y
 sudo apt install binutils binfmt-support -y