Index: uspace/lib/c/include/ipc/ns.h
===================================================================
--- uspace/lib/c/include/ipc/ns.h	(revision 9b1baac695a63afb1850cd44050a52e06635cbd2)
+++ uspace/lib/c/include/ipc/ns.h	(revision bc73be3215c832cdb0c8a5022db800902f9f62dc)
@@ -33,6 +33,6 @@
  */
 
-#ifndef LIBC_IPC_NS_H_
-#define LIBC_IPC_NS_H_
+#ifndef _LIBC_IPC_NS_H_
+#define _LIBC_IPC_NS_H_
 
 #include <ipc/common.h>