diff --git a/partner-otomax.js b/partner-otomax.js
index 9df87b4..8aa9a94 100644
--- a/partner-otomax.js
+++ b/partner-otomax.js
@@ -148,7 +148,7 @@ function parseMessage(task, message) {
     else if (message.indexOf('GAGAL') >= 0) {
         rc = '40';
     }
-    else if (message.indexOf('gagal, dibatalkan SILAHKAN DICOBA KEMBALI')) {
+    else if (message.indexOf('gagal, dibatalkan SILAHKAN DICOBA KEMBALI') >= 0) {
         rc = '40';
     }
     else if (message.indexOf('Invalid Signature') >= 0) {