diff --git a/include/conversions.h b/include/conversions.h
index 74e025d..22e883f 100644
--- a/include/conversions.h
+++ b/include/conversions.h
@@ -2,6 +2,7 @@
 #define CONVERSIONS_H
 
 extern "C" {
+#include <libavutil/frame.h>
 #include <libswscale/swscale.h>
 }