diff --git a/ocaml/README.org b/ocaml/README.org
index 4b5fee8..e840ab8 100644
--- a/ocaml/README.org
+++ b/ocaml/README.org
@@ -330,7 +330,7 @@ down        : history-next                  -> go to the next entry of the histo
 
 #+END_SRC
 
-*Show a Module Sinature*
+*Show a Module Signature*
 
 (Ocaml version >= 4.2)