diff --git a/libmpcodecs/vf_crop.c b/libmpcodecs/vf_crop.c
index 45758d9199..902e3c7a87 100644
--- a/libmpcodecs/vf_crop.c
+++ b/libmpcodecs/vf_crop.c
@@ -5,6 +5,7 @@
 #include "../config.h"
 #include "../mp_msg.h"
 
+#include "img_format.h"
 #include "mp_image.h"
 #include "vf.h"