diff --git a/Chargebee/Classes/Purchase/CBPurchaseManager.swift b/Chargebee/Classes/Purchase/CBPurchaseManager.swift
index 2f5be75..46c08cf 100644
--- a/Chargebee/Classes/Purchase/CBPurchaseManager.swift
+++ b/Chargebee/Classes/Purchase/CBPurchaseManager.swift
@@ -278,9 +278,7 @@ extension CBPurchase: SKPaymentTransactionObserver {
     }
 
     public func paymentQueue(_ queue: SKPaymentQueue, restoreCompletedTransactionsFailedWithError error: Error) {
-        if let error = error as? RestoreError {
-            receiveRestoredTransactionsFinished(error)
-        }
+        receiveRestoredTransactionsFinished(error)
     }
 }
 
diff --git a/Chargebee/Classes/Restore/CBPurchaseManager+Extension.swift b/Chargebee/Classes/Restore/CBPurchaseManager+Extension.swift
index b7e29c1..dbae5bd 100644
--- a/Chargebee/Classes/Restore/CBPurchaseManager+Extension.swift
+++ b/Chargebee/Classes/Restore/CBPurchaseManager+Extension.swift
@@ -17,7 +17,7 @@ extension CBPurchase {
         self.restoredPurchasesCount += 1
     }
     
-    func receiveRestoredTransactionsFinished(_ error: RestoreError?) {
+    func receiveRestoredTransactionsFinished(_ error: Error?) {
         if let error = error {
             debugPrint("Failed to restore purchases: \(error.localizedDescription)")
             self.restoreResponseHandler?(.failure(.restoreFailed))