diff --git a/libs/binder/rust/src/proxy.rs b/libs/binder/rust/src/proxy.rs
index 68fa34b..6a4af07 100644
--- a/libs/binder/rust/src/proxy.rs
+++ b/libs/binder/rust/src/proxy.rs
@@ -430,6 +430,7 @@
 
 impl SerializeArray for SpIBinder {}
 impl SerializeArray for Option<&SpIBinder> {}
+impl SerializeArray for Option<SpIBinder> {}
 
 impl Deserialize for SpIBinder {
     fn deserialize(parcel: &Parcel) -> Result<SpIBinder> {