diff --git a/core/av_common.c b/core/av_common.c
index d67852eb86..68ab461c10 100644
--- a/core/av_common.c
+++ b/core/av_common.c
@@ -17,6 +17,8 @@
 
 #include <assert.h>
 
+#include <libavutil/common.h>
+
 #include "config.h"
 #include "core/mp_talloc.h"
 #include "av_common.h"