diff --git a/src/Plugin.InAppBilling.iOS/InAppBillingImplementation.cs b/src/Plugin.InAppBilling.iOS/InAppBillingImplementation.cs
index 60fe6f6..c937dc5 100644
--- a/src/Plugin.InAppBilling.iOS/InAppBillingImplementation.cs
+++ b/src/Plugin.InAppBilling.iOS/InAppBillingImplementation.cs
@@ -446,8 +446,7 @@ public override void UpdatedTransactions(SKPaymentQueue queue, SKPaymentTransact
 					case SKPaymentTransactionState.Purchased:
 						TransactionCompleted?.Invoke(transaction, true);
 
-						if (TransactionCompleted != null)
-							onPurchaseSuccess?.Invoke(transaction.ToIABPurchase());
+						onPurchaseSuccess?.Invoke(transaction.ToIABPurchase());
 
 						SKPaymentQueue.DefaultQueue.FinishTransaction(transaction);
 						break;