diff --git a/ChangeLog b/ChangeLog
index 941c7df8..dbed65a6 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -10,6 +10,8 @@
 	the ones used for the definition of functions.
 	* libmisc/console.c: Define is_listed() as static and add its
 	prototype.
+	* libmisc/xgetXXbyYY.c, libmisc/yesno.c: Include config.h as a
+	system include, as recommended by the autoconf documentation.
 
 2008-01-01  Nicolas François  <nicolas.francois@centraliens.net>
 
diff --git a/libmisc/xgetXXbyYY.c b/libmisc/xgetXXbyYY.c
index 81a497a5..e5217ee0 100644
--- a/libmisc/xgetXXbyYY.c
+++ b/libmisc/xgetXXbyYY.c
@@ -23,7 +23,7 @@
 #include <unistd.h>
 #include <stdlib.h>
 #include <stdio.h>
-#include "config.h"
+#include <config.h>
 #include "prototypes.h"
 
 #define XFUNCTION_NAME XPREFIX (FUNCTION_NAME)
diff --git a/libmisc/yesno.c b/libmisc/yesno.c
index e5364561..bac10741 100644
--- a/libmisc/yesno.c
+++ b/libmisc/yesno.c
@@ -33,7 +33,7 @@
  * Used by pwck.c and grpck.c
  */
 
-#include "config.h"
+#include <config.h>
 
 #ident "$Id$"