diff --git a/java/res/values/attrs.xml b/java/res/values/attrs.xml
index 9b38139..e88b007 100644
--- a/java/res/values/attrs.xml
+++ b/java/res/values/attrs.xml
@@ -91,6 +91,8 @@
         <attr name="verticalGap" format="dimension|fraction" />
         <!-- Popup keyboard layout template -->
         <attr name="popupKeyboardTemplate" format="reference" />
+        <!-- Locale of the keyboard layout -->
+        <attr name="keyboardLocale" format="string" />
     </declare-styleable>
 
     <declare-styleable name="Keyboard_Key">