--- a/pallets/evm-contract-helpers/src/lib.rs
+++ b/pallets/evm-contract-helpers/src/lib.rs
@@ -35,6 +35,8 @@
 	{
 		type ContractAddress: Get<H160>;
 		type DefaultSponsoringRateLimit: Get<Self::BlockNumber>;
+		type EvmAddressMapping: pallet_evm::AddressMapping<Self::AccountId>;
+		type EvmBackwardsAddressMapping: up_evm_mapping::EvmBackwardsAddressMapping<Self::AccountId>;
 	}
 
 	#[pallet::error]
--- a/runtime/opal/src/lib.rs
+++ b/runtime/opal/src/lib.rs
@@ -948,6 +948,8 @@
 impl pallet_evm_contract_helpers::Config for Runtime {
 	type ContractAddress = HelpersContractAddress;
 	type DefaultSponsoringRateLimit = DefaultSponsoringRateLimit;
+	type EvmAddressMapping = pallet_evm::HashedAddressMapping<Self::Hashing>;
+	type EvmBackwardsAddressMapping = up_evm_mapping::MapBackwardsAddressTruncated;
 }
 
 construct_runtime!(