diff --git a/install/usr/share/swarmlab.io/sec/swarmlab-sec b/install/usr/share/swarmlab.io/sec/swarmlab-sec
index ca12871..b014ad0 100755
--- a/install/usr/share/swarmlab.io/sec/swarmlab-sec
+++ b/install/usr/share/swarmlab.io/sec/swarmlab-sec
@@ -45,7 +45,7 @@ hostnames="auto_update_hosts"
 hostnames_get="get_hosts"
 NODENAME=${HYBRID_NETWORK}_master_1.${HYBRID_NETWORK}_${HYBRID_NETWORK}
 NODENETWORK=${HYBRID_NETWORK}
-DISPLAY=':1'
+DISPLAY=$DISPLAY
 # shellcheck disable=SC1091
 #. ./.env