diff --git a/noir/noir-repo/aztec_macros/src/transforms/contract_interface.rs b/noir/noir-repo/aztec_macros/src/transforms/contract_interface.rs
index 1afe0a30068..921bad4b612 100644
--- a/noir/noir-repo/aztec_macros/src/transforms/contract_interface.rs
+++ b/noir/noir-repo/aztec_macros/src/transforms/contract_interface.rs
@@ -75,7 +75,8 @@ pub fn stub_function(aztec_visibility: &str, func: &NoirFunction) -> String {
                 for i in 0..{0}.len() {{
                     args_acc = args_acc.append(hash_{0}[i].as_slice());
                 }}\n",
-                        param_name, typ.typ
+                        param_name,
+                        typ.typ.to_string().replace("plain::", "")
                     )
                 }
                 _ => {