diff --git a/chebyshev.lisp b/chebyshev.lisp
index 111d4dc0911b61423af017ef1f792722821b0c3f..e55be8c777abbfab49fcd6fbf6b1fb912fa22a09 100644
--- a/chebyshev.lisp
+++ b/chebyshev.lisp
@@ -1,6 +1,6 @@
 ;; Chebyshev Approximations
 ;; Liam Healy Sat Nov 17 2007 - 20:36
-;; Time-stamp: <2010-04-25 21:28:20EDT chebyshev.lisp>
+;; Time-stamp: <2010-04-26 09:48:32EDT chebyshev.lisp>
 ;;
 ;; Copyright 2007, 2008, 2009 Liam M. Healy
 ;; Distributed under the terms of the GNU General Public License
@@ -42,6 +42,7 @@
   "gsl_cheb_order"
   (((mpointer object) :pointer))
   :definition :method
+  :documentation "The order of Chebyshev series."
   :c-return sizet
   :gsl-version (1 12))
 
@@ -49,6 +50,7 @@
   "gsl_cheb_size"
   (((mpointer chebyshev) :pointer))
   :definition :method
+  :documentation "The length of the Chebyshev coefficient array."
   :c-return sizet
   :gsl-version (1 12))
 
@@ -56,6 +58,8 @@
   "gsl_cheb_coeffs"
   (((mpointer chebyshev) :pointer))
   :c-return (crtn :pointer)
+  :documentation
+  "The Chebyshev coefficient array as a CL array (foreign-friendly)."
   :return ((c-array:copy-foreign-vector crtn (size chebyshev)))
   :gsl-version (1 12))