diff --git a/precompiles/src/solidity/codec/native.rs b/precompiles/src/solidity/codec/native.rs
index f4bb9f8e1a..6a9a644caa 100644
--- a/precompiles/src/solidity/codec/native.rs
+++ b/precompiles/src/solidity/codec/native.rs
@@ -38,7 +38,7 @@ impl Codec for () {
 	}
 }
 
-#[impl_for_tuples(1, 18)]
+#[impl_for_tuples(1, 20)]
 impl Codec for Tuple {
 	fn has_static_size() -> bool {
 		for_tuples!(#( Tuple::has_static_size() )&*)