diff --git a/core/lavc_file.h b/core/lavc_file.h
index adddfc5ee..014323839 100644
--- a/core/lavc_file.h
+++ b/core/lavc_file.h
@@ -39,6 +39,7 @@
 #ifndef LAVC_FILE_H
 #define LAVC_FILE_H
 
+#define EMULATE_INTTYPES
 #include <ffmpeg/avcodec.h>
 #include <ffmpeg/avformat.h>