diff --git a/ipmitool/include/ipmitool/ipmi_constants.h b/ipmitool/include/ipmitool/ipmi_constants.h
index 820cdac..61e8198 100644
--- a/ipmitool/include/ipmitool/ipmi_constants.h
+++ b/ipmitool/include/ipmitool/ipmi_constants.h
@@ -81,10 +81,8 @@
 #define IPMI_SET_IN_PROGRESS_IN_PROGRESS  0x01
 #define IPMI_SET_IN_PROGRESS_COMMIT_WRITE 0x02
 
-#undef IPMI_CHANNEL_MEDIUM_IPMB
-
 #define IPMI_CHANNEL_MEDIUM_RESERVED	0x0
-#define IPMI_CHANNEL_MEDIUM_IPMB	0x1
+#define IPMI_CHANNEL_MEDIUM_IPMB_I2C	0x1
 #define IPMI_CHANNEL_MEDIUM_ICMB_1	0x2
 #define IPMI_CHANNEL_MEDIUM_ICMB_09	0x3
 #define IPMI_CHANNEL_MEDIUM_LAN		0x4
diff --git a/ipmitool/lib/ipmi_strings.c b/ipmitool/lib/ipmi_strings.c
index 627a6fe..d4335d0 100644
--- a/ipmitool/lib/ipmi_strings.c
+++ b/ipmitool/lib/ipmi_strings.c
@@ -211,7 +211,7 @@ const struct valstr ipmi_channel_protocol_vals[] = {
 
 const struct valstr ipmi_channel_medium_vals[] = {
 	{ IPMI_CHANNEL_MEDIUM_RESERVED,	"reserved" },
-	{ IPMI_CHANNEL_MEDIUM_IPMB,	"IPMB (I2C)" },
+	{ IPMI_CHANNEL_MEDIUM_IPMB_I2C,	"IPMB (I2C)" },
 	{ IPMI_CHANNEL_MEDIUM_ICMB_1,	"ICMB v1.0" },
 	{ IPMI_CHANNEL_MEDIUM_ICMB_09,	"ICMB v0.9" },
 	{ IPMI_CHANNEL_MEDIUM_LAN,	"802.3 LAN" },