diff --git a/samples/exchange.php b/samples/exchange.php
index 71e45497..a63f5c7a 100644
--- a/samples/exchange.php
+++ b/samples/exchange.php
@@ -29,8 +29,8 @@
     }
 // always start your response with TRUE|
     echo "TRUE| ";
-// Optionally you can send a message after TRUE|, you can view this messages in the logs. https://admin.pay.nl/logs/payment_state
+// Optionally you can send a message after TRUE|, you can view these messages in the logs. https://admin.pay.nl/logs/payment_state
     echo $transaction->isPaid() ? 'Paid' : 'Not paid';
 } catch (\Paynl\Error\Error $e) {
     echo "Fout: " . $e->getMessage();
-}
\ No newline at end of file
+}