Index: uspace/lib/c/include/smc.h
===================================================================
--- uspace/lib/c/include/smc.h	(revision 1c3c287faa0cdc5e3cedcbfc47dc2ffd4b4e73bd)
+++ uspace/lib/c/include/smc.h	(revision 8add15e0d742e2ce9688f92ee8e6378e2caa7b04)
@@ -33,6 +33,6 @@
  */
 
-#ifndef LIBC_SMC_H_
-#define LIBC_SMC_H_
+#ifndef _LIBC_SMC_H_
+#define _LIBC_SMC_H_
 
 #include <errno.h>