diff --git a/neuralnetworks/aidl/Android.bp b/neuralnetworks/aidl/Android.bp
index 145604c..c9242ca 100644
--- a/neuralnetworks/aidl/Android.bp
+++ b/neuralnetworks/aidl/Android.bp
@@ -11,6 +11,7 @@
     name: "android.hardware.neuralnetworks",
     host_supported: true,
     vendor_available: true,
+    frozen: true,
     srcs: [
         "android/hardware/neuralnetworks/*.aidl",
     ],