diff --git a/lib/modulekit/lang b/lib/modulekit/lang
index 78d34172..efeb19d2 160000
--- a/lib/modulekit/lang
+++ b/lib/modulekit/lang
@@ -1 +1 @@
-Subproject commit 78d341721cc5022b3a33827a870f792e9f19b7d0
+Subproject commit efeb19d26228b4b62ba5fdc6b16a911e350f6388
diff --git a/modulekit.php b/modulekit.php
index d1d32b56..58c348e4 100644
--- a/modulekit.php
+++ b/modulekit.php
@@ -12,6 +12,7 @@ $depend = array(
 $include = array(
   'php' => array(
     'src/options.php',
+    'src/language.php',
   ),
 );
 $version = "3.x-dev";
diff --git a/src/language.php b/src/language.php
new file mode 100644
index 00000000..35852bf7
--- /dev/null
+++ b/src/language.php
@@ -0,0 +1,6 @@
+<?php
+register_hook('options_save', function ($options) {
+  if (array_key_exists('ui_lang', $options)) {
+    $_SESSION['ui_lang'] = $options['ui_lang'];
+  }
+});