diff --git a/admin/README b/admin/README
index ddb1afa2223..cca682e5aaf 100644
--- a/admin/README
+++ b/admin/README
@@ -5,6 +5,9 @@ what you do when using them.
 
 Brief description of scripts found here:
 
+alloc-color.c		a utility program that allocates a given number of
+			colors on X.  May be used it to debug Emacs with
+			dense colormaps (PseudoColor).
 build-configs		build Emacs in various configurations
 check-doc-strings	check doc strings against documentation
 diff-tar-files		show files added/removed between two tar files