Index: uspace/lib/c/include/ipc/graph.h
===================================================================
--- uspace/lib/c/include/ipc/graph.h	(revision a35b458e9db1ca95e679799dc7c1b12c83359ca3)
+++ uspace/lib/c/include/ipc/graph.h	(revision 8add15e0d742e2ce9688f92ee8e6378e2caa7b04)
@@ -33,6 +33,6 @@
  */
 
-#ifndef LIBC_IPC_GRAPH_H_
-#define LIBC_IPC_GRAPH_H_
+#ifndef _LIBC_IPC_GRAPH_H_
+#define _LIBC_IPC_GRAPH_H_
 
 #include <ipc/common.h>