diff --git a/sys/applemedia/avfvideosrc.m b/sys/applemedia/avfvideosrc.m
index f6f0eeaf72..6d851857a1 100644
--- a/sys/applemedia/avfvideosrc.m
+++ b/sys/applemedia/avfvideosrc.m
@@ -17,6 +17,10 @@
  * Boston, MA 02110-1301, USA.
  */
 
+#ifdef HAVE_CONFIG_H
+#  include "config.h"
+#endif
+
 #include "avfvideosrc.h"
 
 #import <AVFoundation/AVFoundation.h>