diff --git a/ffmuc-mesh-vpn-wireguard-vxlan/files/lib/gluon/gluon-mesh-wireguard-vxlan/checkuplink b/ffmuc-mesh-vpn-wireguard-vxlan/files/lib/gluon/gluon-mesh-wireguard-vxlan/checkuplink
index af2c6c78..f0717fbd 100755
--- a/ffmuc-mesh-vpn-wireguard-vxlan/files/lib/gluon/gluon-mesh-wireguard-vxlan/checkuplink
+++ b/ffmuc-mesh-vpn-wireguard-vxlan/files/lib/gluon/gluon-mesh-wireguard-vxlan/checkuplink
@@ -35,9 +35,13 @@ combine_ip_port() {
     local ip="$1"
     local port="$2"
 
-    if [[ ${ip} == *":"* ]]; then
+    # Add brackets in case the IP is an IPv6
+    case $ip in
+        *":"*)
             ip="[${ip}]"
-    fi
+            ;;
+    esac
+
     echo "$ip:$port"
 }