diff --git a/TODO b/TODO
index 911a9746..ec258e6b 100644
--- a/TODO
+++ b/TODO
@@ -31,6 +31,8 @@
   in vips_extract_build(), call vips_image_set_start(), somehow sends a signal
   the wrong way down the pipe to the vips_sequential() (if there is one)
   telling it not to stall the first request if it's for that line
+   
+  test --crop in vipsthumbnail on portrait images cropped to landscape