--- a/runtime/common/identity.rs
+++ b/runtime/common/identity.rs
@@ -21,7 +21,9 @@
 
 use sp_runtime::{
 	traits::{DispatchInfoOf, SignedExtension},
-	transaction_validity::{TransactionValidity, ValidTransaction, TransactionValidityError},
+	transaction_validity::{
+		TransactionValidity, ValidTransaction, InvalidTransaction, TransactionValidityError,
+	},
 };
 
 #[derive(Debug, Encode, Decode, PartialEq, Eq, Clone, TypeInfo)]