diff --git a/ipmitool/include/ipmitool/ipmi_intf.h b/ipmitool/include/ipmitool/ipmi_intf.h
index 78caad7..894d2a0 100644
--- a/ipmitool/include/ipmitool/ipmi_intf.h
+++ b/ipmitool/include/ipmitool/ipmi_intf.h
@@ -175,6 +175,7 @@ struct ipmi_intf {
 	uint8_t target_channel;
 	uint32_t transit_addr;
 	uint8_t transit_channel;
+	uint8_t channel_buf_size;
 
 	uint8_t devnum;