1 files changed, 3 insertions, 1 deletions
diff --git a/doc/stdlib/Library.tex b/doc/stdlib/Library.tex
index 87b72a5c29..9260e7e189 100755
--- a/doc/stdlib/Library.tex
+++ b/doc/stdlib/Library.tex
@@ -43,8 +43,10 @@ The standard library is composed of the following subdirectories:
   \item[Sorting] Sorted list (basic definitions and heapsort
                  correctness). 
   \item[Wellfounded] Well-founded relations (basic results).
-  \item[Program] Tactcis to deal with dependently-typed programs and
+  \item[Program] Tactics to deal with dependently-typed programs and
     their proofs.
+  \item[Classes] Standard type class instances on relations and
+    Coq part of the setoid rewriting tactic.
 \end{description}