diff --git a/input/processor/aidl/Android.bp b/input/processor/aidl/Android.bp
index 68adf32..6855b08 100644
--- a/input/processor/aidl/Android.bp
+++ b/input/processor/aidl/Android.bp
@@ -12,6 +12,7 @@
     name: "android.hardware.input.processor",
     host_supported: true,
     vendor_available: true,
+    frozen: true,
     srcs: ["android/hardware/input/processor/*.aidl"],
     imports: [
         "android.hardware.input.common-V1",