Add missing param

1 files changed, 1 insertions, 1 deletions

diff --git a/midtrans.h b/midtrans.h
index 6ed9448..504dc03 100644
--- a/midtrans.h
+++ b/midtrans.h
@@ -32,7 +32,7 @@ struct midtrans_echannel {
 #define midtrans_notification(x, y, z) _Generic((z),\
 		struct midtrans_transaction *\
 		: midtrans_notification_transaction\
-		)(x, y)
+		)(x, y, z)
 
 #ifdef __cplusplus
 extern "C" {