diff --git a/src_data/pages/dashboard.html b/src_data/pages/dashboard.html
index 0c83cc4..4a85a83 100644
--- a/src_data/pages/dashboard.html
+++ b/src_data/pages/dashboard.html
@@ -21,6 +21,7 @@
           <li>
             <select id="lang" aria-label="Lang">
               <option value="en" selected>EN</option>
+              <option value="cn">CN</option>
               <option value="it">IT</option>
               <option value="ru">RU</option>
             </select>
diff --git a/src_data/pages/index.html b/src_data/pages/index.html
index 269c2dd..0958a62 100644
--- a/src_data/pages/index.html
+++ b/src_data/pages/index.html
@@ -21,6 +21,7 @@
           <li>
             <select id="lang" aria-label="Lang">
               <option value="en" selected>EN</option>
+              <option value="cn">CN</option>
               <option value="it">IT</option>
               <option value="ru">RU</option>
             </select>
diff --git a/src_data/pages/network.html b/src_data/pages/network.html
index 7833477..1a90b04 100644
--- a/src_data/pages/network.html
+++ b/src_data/pages/network.html
@@ -21,6 +21,7 @@
           <li>
             <select id="lang" aria-label="Lang">
               <option value="en" selected>EN</option>
+              <option value="cn">CN</option>
               <option value="it">IT</option>
               <option value="ru">RU</option>
             </select>
diff --git a/src_data/pages/sensors.html b/src_data/pages/sensors.html
index c8b677d..0f5d0da 100644
--- a/src_data/pages/sensors.html
+++ b/src_data/pages/sensors.html
@@ -21,6 +21,7 @@
           <li>
             <select id="lang" aria-label="Lang">
               <option value="en" selected>EN</option>
+              <option value="cn">CN</option>
               <option value="it">IT</option>
               <option value="ru">RU</option>
             </select>
diff --git a/src_data/pages/settings.html b/src_data/pages/settings.html
index fe58d94..49f6327 100644
--- a/src_data/pages/settings.html
+++ b/src_data/pages/settings.html
@@ -21,6 +21,7 @@
           <li>
             <select id="lang" aria-label="Lang">
               <option value="en" selected>EN</option>
+              <option value="cn">CN</option>
               <option value="it">IT</option>
               <option value="ru">RU</option>
             </select>
diff --git a/src_data/pages/upgrade.html b/src_data/pages/upgrade.html
index f8cf174..c84e7eb 100644
--- a/src_data/pages/upgrade.html
+++ b/src_data/pages/upgrade.html
@@ -21,6 +21,7 @@
           <li>
             <select id="lang" aria-label="Lang">
               <option value="en" selected>EN</option>
+              <option value="cn">CN</option>
               <option value="it">IT</option>
               <option value="ru">RU</option>
             </select>