diff --git a/src/lxc/caps.c b/src/lxc/caps.c
index b3ab37a1f..e464042d8 100644
--- a/src/lxc/caps.c
+++ b/src/lxc/caps.c
@@ -1,8 +1,7 @@
 /* SPDX-License-Identifier: LGPL-2.1+ */
 
-#ifndef _GNU_SOURCE
-#define _GNU_SOURCE 1
-#endif
+#include "config.h"
+
 #include <errno.h>
 #include <limits.h>
 #include <fcntl.h>
@@ -11,7 +10,6 @@
 #include <sys/prctl.h>
 
 #include "caps.h"
-#include "config.h"
 #include "file_utils.h"
 #include "log.h"
 #include "macro.h"
diff --git a/src/lxc/caps.h b/src/lxc/caps.h
index c3e2c6d21..2f8d802fd 100644
--- a/src/lxc/caps.h
+++ b/src/lxc/caps.h
@@ -3,9 +3,10 @@
 #ifndef __LXC_CAPS_H
 #define __LXC_CAPS_H
 
+#include "config.h"
+
 #include <stdbool.h>
 
-#include "config.h"
 #include "compiler.h"
 
 #if HAVE_LIBCAP