diff --git a/src/constants.conf b/src/constants.conf
index 1f6464b..2bd09ff 100644
--- a/src/constants.conf
+++ b/src/constants.conf
@@ -8,4 +8,4 @@
 # This file contains the project constants on container level
 
 # Define your (administrative) tools, you always want to have installed into your LXC container
-LXC_TOOLSET_BASE="sudo lsb-release curl dirmngr git gnupg2 apt-transport-https software-properties-common wget ssl-cert"
+LXC_TOOLSET_BASE="sudo lsb-release curl dirmngr git gnupg2 apt-transport-https software-properties-common wget ssl-cert tmux"