diff --git a/polkadot/runtime/src/lib.rs b/polkadot/runtime/src/lib.rs
index 04eef28abc..5d87c34d24 100644
--- a/polkadot/runtime/src/lib.rs
+++ b/polkadot/runtime/src/lib.rs
@@ -148,7 +148,7 @@ impl balances::Trait for Concrete {
 	type Balance = Balance;
 	type AccountIndex = AccountIndex;
 	type OnFreeBalanceZero = Staking;
-	type IsAccountLiquid = Staking;
+	type EnsureAccountLiquid = Staking;
 	type Event = Event;
 }
 /// Staking module for this concrete runtime.
@@ -403,7 +403,7 @@ mod tests {
 		// 0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
 
 		let v = Encode::encode(&tx);
-		assert_eq!(&v[..], &hex!["6f000000ff0101010101010101010101010101010101010101010101010101010101010101e70300000400df0f02000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"][..]);
+		assert_eq!(&v[..], &hex!["6f000000ff0101010101010101010101010101010101010101010101010101010101010101e70300000300df0f02000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"][..]);
 		println!("{}", HexDisplay::from(&v));
 		assert_eq!(UncheckedExtrinsic::decode(&mut &v[..]).unwrap(), tx);
 	}