diff --git a/check_process b/check_process
index 39bd3b0..3b5c363 100644
--- a/check_process
+++ b/check_process
@@ -44,7 +44,7 @@
 		# 1.17.0~ynh1
 		upgrade=1	from_commit=3d2f2de9824f4e76c506bb587e4167255ff5f900
 		backup_restore=1
-		multi_instance=0
+		multi_instance=1
 		port_already_use=0
 		change_url=1
 ;;; Options
diff --git a/conf/config.xml b/conf/config.xml
index 90f3aea..f2c384a 100644
--- a/conf/config.xml
+++ b/conf/config.xml
@@ -10,7 +10,8 @@
         <insecureSkipVerify>false</insecureSkipVerify>
     </ldap>
     <options>
-        <listenAddress>default</listenAddress>
+        <listenAddress>tcp://0.0.0.0:__SYNC_PORT__</listenAddress>
+        <listenAddress>quic://0.0.0.0:__SYNC_PORT__</listenAddress>
         <globalAnnounceServer>default</globalAnnounceServer>
         <globalAnnounceEnabled>true</globalAnnounceEnabled>
         <localAnnounceEnabled>true</localAnnounceEnabled>
diff --git a/manifest.json b/manifest.json
index a93b9fb..e3bfe6f 100644
--- a/manifest.json
+++ b/manifest.json
@@ -28,7 +28,7 @@
     "requirements": {
         "yunohost": ">= 4.1.3"
     },
-    "multi_instance": false,
+    "multi_instance": true,
     "services": [
         "nginx"
     ],
diff --git a/scripts/install b/scripts/install
index fe5fbfb..e4938d0 100644
--- a/scripts/install
+++ b/scripts/install
@@ -142,7 +142,7 @@ chown -R $app: $final_path
 
 ynh_systemd_action --service_name=$app --action="start" --log_path=systemd --line_match="Access the GUI via the following URL"
 
-ynh_replace_string --match_string="<listenAddress>tcp://default</listenAddress>" --replace_string="<listenAddress>default</listenAddress>" --target_file="$config_file"
+ynh_replace_string --match_string="<listenAddress>tcp://quic:%2F%2F0.0.0.0:$sync_port</listenAddress>" --replace_string="<listenAddress>quic//0.0.0.0:$sync_port</listenAddress>" --target_file="$config_file"
 
 ynh_systemd_action --service_name=$app --action="stop" --log_path=systemd