Index: uspace/lib/c/include/ipc/irc.h
===================================================================
--- uspace/lib/c/include/ipc/irc.h	(revision 07cb0108f9a269b86e7dd3c0635e5f78a12c9a37)
+++ uspace/lib/c/include/ipc/irc.h	(revision 1995ac3eb9bf37f3e753f79bcf6dba1a3c3df86e)
@@ -33,6 +33,6 @@
  */
 
-#ifndef LIBC_IPC_IRC_H_
-#define LIBC_IPC_IRC_H_
+#ifndef _LIBC_IPC_IRC_H_
+#define _LIBC_IPC_IRC_H_
 
 #include <ipc/common.h>