diff --git a/contexthub/aidl/Android.bp b/contexthub/aidl/Android.bp
index a865445..814bf3b 100644
--- a/contexthub/aidl/Android.bp
+++ b/contexthub/aidl/Android.bp
@@ -40,6 +40,12 @@
             version: "1",
             imports: [],
         },
+        {
+            version: "2",
+            imports: [],
+        },
+
     ],
+    frozen: true,
 
 }