--- a/INSTALL	Sun Jan 20 13:39:04 2008 -0500
+++ b/INSTALL	Sun Jan 20 13:42:48 2008 -0500
@@ -67,6 +67,10 @@
 
    python tests/compare.py
 
+To run the tests, you'll need the `syck module`_.
+
+.. _syck module: http://whytheluckystiff.net/syck/
+
 If everything's in order, all the tests should pass.  Note that some of
 them will fail if some of the programs listed above aren't installed on
 your system.  Many of the tests will fail if for some reason you're missing