diff --git a/Firmware/Chameleon-Mini/Application/MifareClassic.c b/Firmware/Chameleon-Mini/Application/MifareClassic.c
index b0e7df0..aa071ac 100644
--- a/Firmware/Chameleon-Mini/Application/MifareClassic.c
+++ b/Firmware/Chameleon-Mini/Application/MifareClassic.c
@@ -718,7 +718,7 @@ uint16_t MifareClassicAppProcess(uint8_t* Buffer, uint16_t BitCount)
 
         Crypto1ByteArray(&Buffer[4], 4);
 
-        LogEntry(LOG_INFO_APP_AUTHING, &Buffer[start], 4);
+        LogEntry(LOG_INFO_APP_AUTHING, &Buffer[4], 4);
 
         if ((Buffer[4] == ReaderResponse[0]) &&
             (Buffer[5] == ReaderResponse[1]) &&