diff --git a/camera/metadata/aidl/Android.bp b/camera/metadata/aidl/Android.bp
index 301a943..8c13ce5 100644
--- a/camera/metadata/aidl/Android.bp
+++ b/camera/metadata/aidl/Android.bp
@@ -11,6 +11,7 @@
     name: "android.hardware.camera.metadata",
     vendor_available: true,
     srcs: ["android/hardware/camera/metadata/*.aidl"],
+    frozen: true,
     stability: "vintf",
     backend: {
         cpp: {