diff --git a/src/nm-config-data.c b/src/nm-config-data.c
index af7ce4f5d7..02467c53d7 100644
--- a/src/nm-config-data.c
+++ b/src/nm-config-data.c
@@ -19,6 +19,8 @@
  * Copyright (C) 2013 Thomas Bechtold <thomasbechtold@jpberlin.de>
  */
 
+#include "config.h"
+
 #include "nm-config-data.h"
 
 #include <string.h>