diff --git a/core/net/sicslowpan.c b/core/net/sicslowpan.c
index cf9fb46f8..0542085cc 100644
--- a/core/net/sicslowpan.c
+++ b/core/net/sicslowpan.c
@@ -32,7 +32,7 @@
  *
  * This file is part of the Contiki operating system.
  *
- * $Id: sicslowpan.c,v 1.6 2009/04/06 13:11:20 nifi Exp $
+ * $Id: sicslowpan.c,v 1.7 2009/04/06 15:54:07 nifi Exp $
  */
 /**
  * \file
@@ -109,7 +109,7 @@ void uip_log(char *msg);
 #define RIME_HC1_HC_UDP_UDP_ENCODING  2 /* 8 bit */
 #define RIME_HC1_HC_UDP_TTL           3 /* 8 bit */
 #define RIME_HC1_HC_UDP_PORTS         4 /* 8 bit */
-#define RIME_HC1_HC_UDP_CHECKSUM      5 /* 16 bit */
+#define RIME_HC1_HC_UDP_CHKSUM        5 /* 16 bit */
 
 #define RIME_IPHC_BUF              ((struct sicslowpan_iphc_hdr *)(rime_ptr + rime_hdr_len))
 /* #define RIME_IPHC_DISPATCH            0 /\* 8 bit *\/ */