diff --git a/common/iso14443crc.h b/common/iso14443crc.h
index 87347714d..4b1fb7e84 100644
--- a/common/iso14443crc.h
+++ b/common/iso14443crc.h
@@ -16,7 +16,7 @@
 //-----------------------------------------------------------------------------
 #define	CRC_14443_A	0x6363	/* ITU-V.41 */
 #define	CRC_14443_B	0xFFFF  /* ISO/IEC 13239 (formerly ISO/IEC 3309) */
-#define CRC_ICLASS	0xE012  /* ICLASS PRERFIX */
+#define CRC_ICLASS	0xE012  /* ICLASS PREFIX */
 
 void ComputeCrc14443(int CrcType,
                      const unsigned char *Data, int Length,