diff --git a/runtime/src/lib.rs b/runtime/src/lib.rs
index c5b5d23ebec0cc8c9bfc54f1a480730d5a306f48..e9a16b8e5f1e0bc2d6f6304888609383b94067a8 100644
--- a/runtime/src/lib.rs
+++ b/runtime/src/lib.rs
@@ -286,7 +286,7 @@ impl pallet_contracts::Trait for Runtime {
 	type MaxDepth = pallet_contracts::DefaultMaxDepth;
 	type MaxValueSize = pallet_contracts::DefaultMaxValueSize;
 	type WeightPrice = pallet_transaction_payment::Module<Self>;
-	type WeightInfo = ();
+	type WeightInfo = pallet_contracts::weights::SubstrateWeight<Self>;
 }
 
 impl pallet_sudo::Trait for Runtime {