diff --git a/root/app/proton_update_app b/root/app/proton_update_app
new file mode 100644
index 000000000..0a3ad49d5
--- /dev/null
+++ b/root/app/proton_update_app
@@ -0,0 +1,8 @@
+# shellcheck shell=bash
+webui_https="http"
+if grep -q 'WebUI\\HTTPS\\Enabled=true' "${CONFIG_DIR}/config/qBittorrent.conf"; then
+    webui_https="https"
+fi
+curl -fsSL --insecure -X POST -d "json={\"upnp\": false}" "${webui_https}://localhost:${WEBUI_PORTS%%/*}/api/v2/app/setPreferences"
+curl -fsSL --insecure -X POST -d "json={\"random_port\": false}" "${webui_https}://localhost:${WEBUI_PORTS%%/*}/api/v2/app/setPreferences"
+curl -fsSL --insecure -X POST -d "json={\"listen_port\": ${port}}" "${webui_https}://localhost:${WEBUI_PORTS%%/*}/api/v2/app/setPreferences"
diff --git a/root/etc/s6-overlay/s6-rc.d/service-proton/run b/root/etc/s6-overlay/s6-rc.d/service-proton/run
index 8e4500d7b..400034426 100644
--- a/root/etc/s6-overlay/s6-rc.d/service-proton/run
+++ b/root/etc/s6-overlay/s6-rc.d/service-proton/run
@@ -17,13 +17,8 @@ while true; do
             old_port=$(cat "${CONFIG_DIR}/forwarded_port")
             if [[ "${port}" != "${old_port}" ]]; then
                 echo "${port}" > "${CONFIG_DIR}/forwarded_port"
-                webui_https="http"
-                if grep -q 'WebUI\\HTTPS\\Enabled=true' "${CONFIG_DIR}/config/qBittorrent.conf"; then
-                    webui_https="https"
-                fi
-                curl -fsSL --insecure -X POST -d "json={\"upnp\": false}" "${webui_https}://localhost:${WEBUI_PORTS%%/*}/api/v2/app/setPreferences"
-                curl -fsSL --insecure -X POST -d "json={\"random_port\": false}" "${webui_https}://localhost:${WEBUI_PORTS%%/*}/api/v2/app/setPreferences"
-                curl -fsSL --insecure -X POST -d "json={\"listen_port\": ${port}}" "${webui_https}://localhost:${WEBUI_PORTS%%/*}/api/v2/app/setPreferences"
+                # shellcheck source=/dev/null
+                source "${APP_DIR}/proton_update_app"
             fi
             echo "[INFO] [$(date '+%Y-%m-%d %H:%M:%S')] ProtonVPN forwarded port is \"${port}\"."
         else