From c2ecf80df96f9782ef716d01678ed33f886a6480 Mon Sep 17 00:00:00 2001
From: Anton Tananaev <anton.tananaev@gmail.com>
Date: Thu, 1 Oct 2015 15:04:06 +1300
Subject: Fix Luhn checksum calculation

---
 src/org/traccar/helper/Crc.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/org/traccar/helper')

diff --git a/src/org/traccar/helper/Crc.java b/src/org/traccar/helper/Crc.java
index 418ec3132..522a25403 100644
--- a/src/org/traccar/helper/Crc.java
+++ b/src/org/traccar/helper/Crc.java
@@ -172,7 +172,7 @@ public class Crc {
             remain /= 10;
         }
 
-        return 10 - (checksum % 10);
+        return (10 - (checksum % 10)) % 10;
     }
     
 }
-- 
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