diff --git a/ipmitool/src/plugins/lan/lan.c b/ipmitool/src/plugins/lan/lan.c
index 3fb9189..42c676f 100644
--- a/ipmitool/src/plugins/lan/lan.c
+++ b/ipmitool/src/plugins/lan/lan.c
@@ -428,13 +428,6 @@ ipmi_auth_md5(struct ipmi_session * s, unsigned char * data, int data_len)
 	return digest;
 }
 
-unsigned char ipmi_csum(unsigned char * d, int s)
-{
-	unsigned char c = 0;
-	for (; s > 0; s--, d++)
-		c += *d;
-	return -c;
-}
 
 static struct ipmi_rs *
 ipmi_lan_poll_recv(struct ipmi_intf * intf)
diff --git a/ipmitool/src/plugins/lan/lan.h b/ipmitool/src/plugins/lan/lan.h
index a55a7db..d568cfe 100644
--- a/ipmitool/src/plugins/lan/lan.h
+++ b/ipmitool/src/plugins/lan/lan.h
@@ -60,7 +60,7 @@
 #define IPMI_SESSION_PRIV_ADMIN		0x4
 #define IPMI_SESSION_PRIV_OEM		0x5
 
-unsigned char ipmi_csum(unsigned char * d, int s);
+
 
 struct ipmi_rs * ipmi_lan_send_cmd(struct ipmi_intf * intf, struct ipmi_rq * req);
 int  ipmi_lan_open(struct ipmi_intf * intf);