diff --git a/src/RonMelkhior/CoinpaymentsIPN/IPN.php b/src/RonMelkhior/CoinpaymentsIPN/IPN.php
index 289736e..64e0d07 100644
--- a/src/RonMelkhior/CoinpaymentsIPN/IPN.php
+++ b/src/RonMelkhior/CoinpaymentsIPN/IPN.php
@@ -5,6 +5,7 @@
 use RonMelkhior\CoinpaymentsIPN\Initialize;
 use RonMelkhior\CoinpaymentsIPN\Exceptions\InvalidRequestException;
 use RonMelkhior\CoinpaymentsIPN\Exceptions\InvalidDataException;
+use RonMelkhior\CoinpaymentsIPN\Exceptions\FailedPaymentException;
 
 class IPN
 {