diff --git a/libavformat/tls_securetransport.c b/libavformat/tls_securetransport.c
index 51b6661534..482771a926 100644
--- a/libavformat/tls_securetransport.c
+++ b/libavformat/tls_securetransport.c
@@ -22,6 +22,7 @@
 
 
 #include "avformat.h"
+#include "avio_internal.h"
 #include "internal.h"
 #include "network.h"
 #include "os_support.h"