diff --git a/README.md b/README.md
index be402d4..17fa907 100644
--- a/README.md
+++ b/README.md
@@ -28,6 +28,7 @@ The following env variables can be used to configure the mod (all are optional)
 |   `GSP_QBT_ADDR`       | `http://localhost:8080` | Qbittorrent API host address. If the env variable `WEBUI_PORT` is set, it will be used as default.       |
 |     `GSP_SLEEP`        |           `60`          | Time between checks in seconds.                                                                          |
 |  `GSP_RETRY_DELAY`     |           `10`          | Time between retries in case of error (in s).                                                            |
+|  `GSP_PORT_INDEX`      |           `1`           | Index of port to use from gluetun. Set to `2` to use the second one, etc. Only if you have multiple ports forwarded.          |
 | `GSP_QBT_USERNAME`     |                         | Qbittorrent username.                                                                                    |
 | `GSP_QBT_PASSWORD`     |                         | Qbittorrent password.                                                                                    |
 | `GSP_QBT_PASSWORD_FILE`|                         | Qbittorrent password file (for [docker secret](https://docs.docker.com/compose/use-secrets/) use). This supplants `GSP_QBT_PASSWORD`. |
@@ -133,6 +134,7 @@ User GID:    1000
 +---------------------------------------------------------+
 |  Qbittorrent address : http://localhost:8080            |
 |  Gluetun address : http://localhost:8000                |
+|  Port index : 1                                         |
 +---------------------------------------------------------+
 
 04/10/24 01:03:49 [GSP] - Waiting for Qbittorrent WebUI ...
diff --git a/root/etc/s6-overlay/s6-rc.d/svc-mod-gluetun-sync-port/run b/root/etc/s6-overlay/s6-rc.d/svc-mod-gluetun-sync-port/run
index e783973..1fc042f 100644
--- a/root/etc/s6-overlay/s6-rc.d/svc-mod-gluetun-sync-port/run
+++ b/root/etc/s6-overlay/s6-rc.d/svc-mod-gluetun-sync-port/run
@@ -6,6 +6,7 @@
 MAX_SLEEP_TIME="${GSP_SLEEP:-60}"
 RETRY_DELAY="${GSP_RETRY_DELAY:-10}"
 INIT_RETRY_WAIT="${GSP_INIT_RETRY_WAIT:-10}"
+PORT_INDEX="$(( ${GSP_PORT_INDEX:-1} - 1))"
 [ "${MAX_SLEEP_TIME}" -eq "${RETRY_DELAY}" ] && (( RETRY_DELAY = RETRY_DELAY - 1 )) # To avoid errors later
 GLUETUN="${GSP_GTN_ADDR:-http://localhost:8000}"
 QBITTORRENT="${GSP_QBT_ADDR:-http://localhost:${WEBUI_PORT:-8080}}"
@@ -19,6 +20,7 @@ DEBUG="${GSP_DEBUG:-false}"
 spaces='                                                            '
 QBT_display="${QBITTORRENT}${spaces}"
 GTN_display="${GLUETUN}${spaces}"
+INDEX_DISPLAY="${GSP_PORT_INDEX:-1}${spaces}"
 
 echo "\
 +---------------------------------------------------------+
@@ -26,6 +28,7 @@ echo "\
 +---------------------------------------------------------+
 |  Qbittorrent address : ${QBT_display::33}|
 |  Gluetun address : ${GTN_display::37}|
+|  Port index : ${INDEX_DISPLAY::42}|
 +---------------------------------------------------------+
 "
 
@@ -110,7 +113,16 @@ get_ports(){
     ;;
   esac
   [ "${QBT}" ] && QBT_PORT=$(curl --silent --fail --show-error ${QBT_COOKIES} "${QBITTORRENT}/api/v2/app/preferences" | jq ".listen_port" 2>/dev/null)
-  [ "${GTN}" ] && GTN_PORT=$(curl  --silent --fail --show-error "${GLUETUN}/v1/openvpn/portforwarded" | jq ".port" 2>/dev/null)
+  [ "${GTN}" ] && { 
+    GTN_PORTS=$(curl  --silent --fail --show-error "${GLUETUN}/v1/openvpn/portforwarded" | jq ".port" 2>/dev/null)
+    if  echo "${GTN_PORTS}" | grep -Fq '[' ; then # Handle the case of multiple ports - ex : [10550,20550,30550]
+      GTN_PORT=$(echo "${GTN_PORTS}" | jq .[${PORT_INDEX}] 2>/dev/null) 
+      [ "${GTN_PORT}" = "null" ] && log "[ERROR] GSP_PORT_INDEX (${GSP_PORT_INDEX:-1}) > Nb of ports ($(( $(echo "${GTN_PORTS}" | grep -c ',') + 1 )))."\
+        && GTN_PORT=0
+    else
+      GTN_PORT="${GTN_PORTS}"
+    fi
+  }
 }
 
 if [ "${DEBUG,,}" = "true" ]; then