diff --git a/libavformat/img2.c b/libavformat/img2.c
index 244b050802..421a2c3b15 100644
--- a/libavformat/img2.c
+++ b/libavformat/img2.c
@@ -20,6 +20,7 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
+#include "libavutil/intreadwrite.h"
 #include "libavutil/avstring.h"
 #include "avformat.h"
 #include <strings.h>