diff --git a/keymaster/4.0/Android.bp b/keymaster/4.0/Android.bp
new file mode 100644
index 0000000..2d4e7bf
--- /dev/null
+++ b/keymaster/4.0/Android.bp
@@ -0,0 +1,28 @@
+// This file is autogenerated by hidl-gen -Landroidbp.
+
+hidl_interface {
+    name: "android.hardware.keymaster@4.0",
+    root: "android.hardware",
+    vndk: {
+        enabled: true,
+    },
+    srcs: [
+        "types.hal",
+        "IKeymaster.hal",
+    ],
+    interfaces: [
+        "android.hardware.keymaster@3.0",
+        "android.hidl.base@1.0",
+    ],
+    types: [
+        "HardwareAuthToken",
+        "HardwareAuthTokenMacMethod",
+        "KeyCharacteristics",
+        "KeyParameter",
+        "KeyPurpose",
+        "Tag",
+        "TagType",
+    ],
+    gen_java: false,
+}
+