diff --git a/libavcodec/libdavs2.c b/libavcodec/libdavs2.c
index 383b54039a..0f18353c93 100644
--- a/libavcodec/libdavs2.c
+++ b/libavcodec/libdavs2.c
@@ -23,6 +23,7 @@
  */
 
 #include "avcodec.h"
+#include "internal.h"
 #include "davs2.h"
 
 typedef struct DAVS2Context {