diff --git a/templates/scripts/includes/deployment.sh b/templates/scripts/includes/deployment.sh
index 32743b1..9593520 100755
--- a/templates/scripts/includes/deployment.sh
+++ b/templates/scripts/includes/deployment.sh
@@ -1289,7 +1289,7 @@ EOT
 fi
 
 # TT#41500: Make sure the timezone setup is coherent
-grml-chroot "$TARGET" dpkg-reconfigure tzdata
+grml-chroot "$TARGET" dpkg-reconfigure --frontend=noninteractive tzdata
 
 # provide useable swap partition
 echo "Enabling swap partition $SWAP_PARTITION via /etc/fstab"