diff --git a/tools/aconfig/Android.bp b/tools/aconfig/Android.bp
index 0e3c37cc13..37be2dd975 100644
--- a/tools/aconfig/Android.bp
+++ b/tools/aconfig/Android.bp
@@ -44,7 +44,6 @@ rust_protobuf {
     protos: ["protos/aconfig.proto"],
     crate_name: "aconfig_protos",
     source_stem: "aconfig_protos",
-    use_protobuf3: true,
     host_supported: true,
 }