Index: uspace/lib/c/include/ipc/iplink.h
===================================================================
--- uspace/lib/c/include/ipc/iplink.h	(revision c3b25985a33ea9ae992d45cc6df7c7a892242e79)
+++ uspace/lib/c/include/ipc/iplink.h	(revision bc73be3215c832cdb0c8a5022db800902f9f62dc)
@@ -33,6 +33,6 @@
  */
 
-#ifndef LIBC_IPC_IPLINK_H_
-#define LIBC_IPC_IPLINK_H_
+#ifndef _LIBC_IPC_IPLINK_H_
+#define _LIBC_IPC_IPLINK_H_
 
 #include <ipc/common.h>