diff --git a/include/usb_cmd.h b/include/usb_cmd.h
index 3b19f2c7..1910312b 100644
--- a/include/usb_cmd.h
+++ b/include/usb_cmd.h
@@ -178,8 +178,7 @@ typedef struct{
 #define CMD_MIFARE_SNIFFER                                                0x0630
 
 //ultralightC
-#define CMD_MIFAREUC_AUTH1						                          0x0724
-#define CMD_MIFAREUC_AUTH2						                          0x0725
+#define CMD_MIFAREUC_AUTH						                          0x0724
 #define CMD_MIFAREUC_READCARD						                      0x0726
 #define CMD_MIFAREUC_SETPWD							                      0x0727
 #define CMD_MIFAREU_SETUID							                      0x0728