diff --git a/plugins/avxffms2/src/avsutils.h b/plugins/avxffms2/src/avsutils.h
index 15b530d..463042e 100644
--- a/plugins/avxffms2/src/avsutils.h
+++ b/plugins/avxffms2/src/avsutils.h
@@ -22,6 +22,7 @@
 #define AVSUTILS_H
 
 extern "C" {
+#include <libavformat/avformat.h>
 #include <libavcodec/avcodec.h>
 }
 
diff --git a/plugins/avxffms2/src/ffswscale.h b/plugins/avxffms2/src/ffswscale.h
index 2d62fc7..96960b2 100644
--- a/plugins/avxffms2/src/ffswscale.h
+++ b/plugins/avxffms2/src/ffswscale.h
@@ -22,6 +22,7 @@
 #define FFSWSCALE_H
 
 extern "C" {
+#include <libavformat/avformat.h>
 #include <libswscale/swscale.h>
 }