diff --git a/README.md b/README.md
index 66c3fc6..25d721e 100644
--- a/README.md
+++ b/README.md
@@ -70,6 +70,7 @@ The following cross development tools have been developed to support the example
 
 * [imagecon](tools/imagecon) # create amiga compatible raw image data from true color images
 * [resize](tools/resize)     # resize images ready for imagecon
+* [croppa](tools/croppa)     # crop images ready for imagecon
 * [makeadf](tools/makeadf)   # make ADF disk image
 
 external tools