diff --git a/Android.bp b/Android.bp
index c37d777..b944941 100644
--- a/Android.bp
+++ b/Android.bp
@@ -141,3 +141,12 @@
         "//packages/modules/Virtualization/build/microdroid",
     ],
 }
+
+build_prop {
+    name: "system_ext-build.prop",
+    stem: "build.prop",
+    system_ext_specific: true,
+    product_config: ":product_config",
+    relative_install_path: "etc", // system_ext/etc/build.prop
+    visibility: ["//visibility:private"],
+}