diff --git a/common/protocols.h b/common/protocols.h
index c3591804b..3fa125428 100644
--- a/common/protocols.h
+++ b/common/protocols.h
@@ -126,8 +126,9 @@ NXP/Philips CUSTOM COMMANDS
 //#define MIFARE_ULC_WRITE        0xA0
 #define MIFARE_ULC_AUTH_1       0x1A
 #define MIFARE_ULC_AUTH_2       0xAF
+
 #define MIFARE_ULEV1_AUTH		0x1B
-#define MIFARE_ULEV1_VERS		0x60
+#define MIFARE_ULEV1_VERSION	0x60
 #define MIFARE_ULEV1_FASTREAD	0x3A
 #define MIFARE_ULEV1_WRITE		0xA2
 //#define MIFARE_ULEV1_COMP_WRITE	0xA0