Index: uspace/lib/c/include/devman.h
===================================================================
--- uspace/lib/c/include/devman.h	(revision 1b20da07baaa3e3c424f62c927274e676e4295cd)
+++ uspace/lib/c/include/devman.h	(revision 627dc4142955b8c6a43702c719b092703c40d591)
@@ -34,6 +34,6 @@
  */
 
-#ifndef LIBC_DEVMAN_H_
-#define LIBC_DEVMAN_H_
+#ifndef _LIBC_DEVMAN_H_
+#define _LIBC_DEVMAN_H_
 
 #include <ipc/devman.h>