diff --git a/ui/src/App.vue b/ui/src/App.vue
index 2824e16..d0ad542 100644
--- a/ui/src/App.vue
+++ b/ui/src/App.vue
@@ -17,6 +17,7 @@
       :initial-server-url="serverUrl"
       :initial-ws-only="wsOnly"
       :initial-path="path"
+      :initial-namespace="namespace"
       :initial-parser="parser"
       :is-connecting="isConnecting"
       :error="connectionError"
@@ -70,6 +71,7 @@ export default {
       serverUrl: (state) => state.connection.serverUrl,
       wsOnly: (state) => state.connection.wsOnly,
       path: (state) => state.connection.path,
+      namespace: (state) => state.connection.namespace,
       parser: (state) => state.connection.parser,
       backgroundColor: (state) =>
         state.config.darkTheme ? "" : "grey lighten-5",
@@ -92,7 +94,7 @@ export default {
   },
 
   methods: {
-    tryConnect(serverUrl, auth, wsOnly, path, parser) {
+    tryConnect(serverUrl, namespace, auth, wsOnly, path, parser) {
       this.isConnecting = true;
       if (SocketHolder.socket) {
         SocketHolder.socket.disconnect();
@@ -100,7 +102,7 @@ export default {
         SocketHolder.socket.off("connect_error");
         SocketHolder.socket.off("disconnect");
       }
-      const socket = io(serverUrl, {
+      const socket = io(serverUrl + namespace, {
         forceNew: true,
         reconnection: false,
         withCredentials: true, // needed for cookie-based sticky-sessions
@@ -119,6 +121,7 @@ export default {
           serverUrl,
           wsOnly,
           path,
+          namespace,
           parser,
         });
         SocketHolder.socket = socket;
@@ -210,6 +213,7 @@ export default {
     onSubmit(form) {
       this.tryConnect(
         form.serverUrl,
+        form.namespace,
         {
           username: form.username,
           password: form.password,
@@ -231,6 +235,7 @@ export default {
       const sessionId = this.$store.state.connection.sessionId;
       this.tryConnect(
         this.serverUrl,
+        this.namespace,
         {
           sessionId,
         },
diff --git a/ui/src/components/ConnectionModal.vue b/ui/src/components/ConnectionModal.vue
index 80adb04..9b0667f 100644
--- a/ui/src/components/ConnectionModal.vue
+++ b/ui/src/components/ConnectionModal.vue
@@ -12,7 +12,7 @@
           <v-text-field
             v-model="serverUrl"
             :label="$t('connection.serverUrl')"
-            placeholder="https://example.com/admin"
+            placeholder="https://example.com"
             required
           ></v-text-field>
           <v-text-field
@@ -26,22 +26,39 @@
           ></v-text-field>
 
           <v-switch
-            v-model="wsOnly"
-            :label="$t('connection.websocket-only')"
+            v-model="showAdvancedOptions"
+            :label="$t('connection.advanced-options')"
             inset
             dense
           />
 
-          <v-text-field
-            v-model="path"
-            :label="$t('connection.path')"
-          ></v-text-field>
+          <v-expand-transition>
+            <div v-if="showAdvancedOptions">
+              <v-switch
+                v-model="wsOnly"
+                :label="$t('connection.websocket-only')"
+                inset
+                dense
+                v-show="showAdvancedOptions"
+              />
 
-          <v-select
-            v-model="parser"
-            :label="$t('connection.parser')"
-            :items="parserOptions"
-          />
+              <v-text-field
+                v-model="namespace"
+                :label="$t('connection.namespace')"
+              ></v-text-field>
+
+              <v-text-field
+                v-model="path"
+                :label="$t('connection.path')"
+              ></v-text-field>
+
+              <v-select
+                v-model="parser"
+                :label="$t('connection.parser')"
+                :items="parserOptions"
+              />
+            </div>
+          </v-expand-transition>
 
           <v-btn
             :loading="isConnecting"
@@ -69,15 +86,18 @@ export default {
     initialServerUrl: String,
     initialWsOnly: Boolean,
     initialPath: String,
+    initialNamespace: String,
     initialParser: String,
     error: String,
   },
 
   data() {
     return {
+      showAdvancedOptions: false,
       serverUrl: this.initialServerUrl,
       wsOnly: this.initialWsOnly,
       path: this.initialPath,
+      namespace: this.initialNamespace,
       username: "",
       password: "",
       parser: this.initialParser,
@@ -111,6 +131,7 @@ export default {
         serverUrl: this.serverUrl,
         wsOnly: this.wsOnly,
         path: this.path,
+        namespace: this.namespace,
         username: this.username,
         password: this.password,
         parser: this.parser,
diff --git a/ui/src/locales/en.json b/ui/src/locales/en.json
index 397ac77..54dc095 100644
--- a/ui/src/locales/en.json
+++ b/ui/src/locales/en.json
@@ -29,7 +29,9 @@
     "path": "Path",
     "parser": "Parser",
     "default-parser": "Built-in parser",
-    "msgpack-parser": "MessagePack parser"
+    "msgpack-parser": "MessagePack parser",
+    "namespace": "Admin namespace",
+    "advanced-options": "Advanced options"
   },
   "dashboard": {
     "title": "Dashboard",
diff --git a/ui/src/locales/fr.json b/ui/src/locales/fr.json
index 5346b9a..9732d84 100644
--- a/ui/src/locales/fr.json
+++ b/ui/src/locales/fr.json
@@ -26,7 +26,12 @@
     "invalid-credentials": "Identifiants invalides",
     "error": "Erreur",
     "websocket-only": "WebSocket uniquement ?",
-    "path": "Chemin HTTP"
+    "path": "Chemin HTTP",
+    "parser": "Encodeur",
+    "default-parser": "Encodeur par défaut",
+    "msgpack-parser": "Encodeur basé sur MessagePack",
+    "namespace": "Espace de nom d'administration",
+    "advanced-options": "Options avancées"
   },
   "dashboard": {
     "title": "Accueil",
diff --git a/ui/src/store/modules/connection.js b/ui/src/store/modules/connection.js
index 9900723..e306279 100644
--- a/ui/src/store/modules/connection.js
+++ b/ui/src/store/modules/connection.js
@@ -6,6 +6,7 @@ export default {
     serverUrl: "",
     wsOnly: false,
     path: "/socket.io",
+    namespace: "/admin",
     parser: "default",
     sessionId: "",
     connected: false,
@@ -13,22 +14,30 @@ export default {
   mutations: {
     init(state) {
       if (isLocalStorageAvailable) {
-        state.serverUrl = localStorage.getItem("server_url");
+        state.serverUrl = localStorage.getItem("server_url") || "";
+        if (state.serverUrl.endsWith("/admin")) {
+          // for backward compatibility
+          state.serverUrl = state.serverUrl.slice(0, -6);
+        } else {
+          state.namespace = localStorage.getItem("namespace") || "/admin";
+        }
         state.wsOnly = localStorage.getItem("ws_only") === "true";
         state.sessionId = localStorage.getItem("session_id");
         state.path = localStorage.getItem("path") || "/socket.io";
         state.parser = localStorage.getItem("parser") || "default";
       }
     },
-    saveConfig(state, { serverUrl, wsOnly, path, parser }) {
+    saveConfig(state, { serverUrl, wsOnly, path, namespace, parser }) {
       state.serverUrl = serverUrl;
       state.wsOnly = wsOnly;
       state.path = path;
+      state.namespace = namespace;
       state.parser = parser;
       if (isLocalStorageAvailable) {
         localStorage.setItem("server_url", serverUrl);
         localStorage.setItem("ws_only", wsOnly);
         localStorage.setItem("path", path);
+        localStorage.setItem("namespace", namespace);
         localStorage.setItem("parser", parser);
       }
     },