Index: uspace/lib/c/include/adt/prodcons.h
===================================================================
--- uspace/lib/c/include/adt/prodcons.h	(revision b72efe87f3e33beaa3b0d0cf7c8b598a58f6a6de)
+++ uspace/lib/c/include/adt/prodcons.h	(revision bc73be3215c832cdb0c8a5022db800902f9f62dc)
@@ -33,6 +33,6 @@
  */
 
-#ifndef LIBC_PRODCONS_H_
-#define LIBC_PRODCONS_H_
+#ifndef _LIBC_PRODCONS_H_
+#define _LIBC_PRODCONS_H_
 
 #include <adt/list.h>