diff --git a/Android.bp b/Android.bp
index d53f42b..cbc01d3 100644
--- a/Android.bp
+++ b/Android.bp
@@ -1,5 +1,7 @@
 // This file is generated by cargo_embargo.
-// Do not modify this file as changes will be overridden on upgrade.
+// Do not modify this file after the first "rust_*" or "genrule" module
+// because the changes will be overridden on upgrade.
+// Content before the first "rust_*" or "genrule" module is preserved.
 
 package {
     default_applicable_licenses: ["external_rust_crates_rustc-hash_license"],
@@ -43,7 +45,7 @@
     crate_name: "rustc_hash",
     cargo_env_compat: true,
     cargo_pkg_version: "1.1.0",
-    srcs: ["src/lib.rs"],
+    crate_root: "src/lib.rs",
     edition: "2015",
     features: [
         "default",