diff --git a/conf/includes/debian.conf.sh b/conf/includes/debian.conf.sh
index 344e4fa..e142590 100644
--- a/conf/includes/debian.conf.sh
+++ b/conf/includes/debian.conf.sh
@@ -8,6 +8,9 @@ export COM_UPGRADE="full-upgrade -y"
 export COM_REMOVE="remove --purge -y"
 export COM_AUTOREM="autoremove --purge -y"
 
+# Special variable for apt tools to disable any interactive behaviour
+export DEBIAN_FRONTEND=noninteractive
+
 # Conf chemin
 export RC_SCRIPTS_PATH="/etc/init.d"