diff --git a/libavformat/metadata_compat.c b/libavformat/metadata_compat.c
index 7aef9389ab..a7f2dfea92 100644
--- a/libavformat/metadata_compat.c
+++ b/libavformat/metadata_compat.c
@@ -18,12 +18,13 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
-#if LIBAVFORMAT_VERSION_MAJOR < 53
-
 #include <strings.h>
+#include "avformat.h"
 #include "metadata.h"
 #include "libavutil/avstring.h"
 
+#if LIBAVFORMAT_VERSION_MAJOR < 53
+
 #define SIZE_OFFSET(x) sizeof(((AVFormatContext*)0)->x),offsetof(AVFormatContext,x)
 
 static const struct {