diff --git a/runtime/testnet/src/config/contracts.rs b/runtime/testnet/src/config/contracts.rs
index 8de8494a..dc2a61c9 100644
--- a/runtime/testnet/src/config/contracts.rs
+++ b/runtime/testnet/src/config/contracts.rs
@@ -66,9 +66,8 @@ impl pallet_contracts::Config for Runtime {
 	type MaxCodeLen = ConstU32<{ 256 * 1024 }>;
 	type MaxDebugBufferLen = ConstU32<{ 2 * 1024 * 1024 }>;
 	type MaxDelegateDependencies = ConstU32<32>;
-	type MaxTransientStorageSize = ConstU32<{ 1 * 1024 * 1024 }>;
 	type MaxStorageKeyLen = ConstU32<128>;
-	type MaxTransientStorageSize = ConstU32<{ 1024 * 1024 }>;
+	type MaxTransientStorageSize = ConstU32<{ 1 * 1024 * 1024 }>;
 	type Migrations = (pallet_contracts::migration::v16::Migration<Runtime>,);
 	type Randomness = DummyRandomness<Self>;
 	type RuntimeCall = RuntimeCall;