diff --git a/feature/rfid-read/source/read.py b/feature/rfid-read/source/read.py
index a35bb50..6809b7c 100644
--- a/feature/rfid-read/source/read.py
+++ b/feature/rfid-read/source/read.py
@@ -28,10 +28,10 @@ if status != MIFAREReader.MI_OK:
 
 # [6] Print UID
 hexCode = [];
-hexcode.append( str(hex(uid[0]))[2:] );
-hexcode.append( str(hex(uid[1]))[2:] );
-hexcode.append( str(hex(uid[2]))[2:] );
-hexcode.append( str(hex(uid[3]))[2:] );
+hexCode.append( str(hex(uid[0]))[2:] );
+hexCode.append( str(hex(uid[1]))[2:] );
+hexCode.append( str(hex(uid[2]))[2:] );
+hexCode.append( str(hex(uid[3]))[2:] );
 
 
 if( len(hexCode[0]) == 1 ):