diff --git a/libavutil/intreadwrite.h b/libavutil/intreadwrite.h
index 6e265eaa17..085aaadb9d 100644
--- a/libavutil/intreadwrite.h
+++ b/libavutil/intreadwrite.h
@@ -20,6 +20,7 @@
 #define INTREADWRITE_H
 
 #include <stdint.h>
+#include "bswap.h"
 
 #ifdef __GNUC__