diff --git a/contracts/src/token/erc1155/mod.rs b/contracts/src/token/erc1155/mod.rs
index 1266bc58..e89369c5 100644
--- a/contracts/src/token/erc1155/mod.rs
+++ b/contracts/src/token/erc1155/mod.rs
@@ -536,7 +536,7 @@ impl Erc1155 {
         data: Bytes,
     ) -> Result<(), Error> {
         self._update(from, to, token_ids.clone(), values.clone())?;
-        if to != Address::ZERO {
+        if !to.is_zero() {
             let operator = msg::sender();
             if token_ids.len() == 1 {
                 let token_id = token_ids[0];