Index: uspace/lib/c/include/nic/eth_phys.h
===================================================================
--- uspace/lib/c/include/nic/eth_phys.h	(revision 8d2dd7f2d52fbc7693f94b66e451eeff3756d061)
+++ uspace/lib/c/include/nic/eth_phys.h	(revision 1995ac3eb9bf37f3e753f79bcf6dba1a3c3df86e)
@@ -28,6 +28,6 @@
  */
 
-#ifndef LIBC_NIC_ETH_PHYS_H_
-#define LIBC_NIC_ETH_PHYS_H_
+#ifndef _LIBC_NIC_ETH_PHYS_H_
+#define _LIBC_NIC_ETH_PHYS_H_
 
 #include <stdint.h>