1 files changed, 1 insertions, 1 deletions

diff --git a/lisp/nxml/nxml-ns.el b/lisp/nxml/nxml-ns.el
index 7fb6d0e4874..1c7068faf21 100644
--- a/lisp/nxml/nxml-ns.el
+++ b/lisp/nxml/nxml-ns.el
@@ -71,7 +71,7 @@ are inherited from the parent state."
   (setq nxml-ns-state (cons (car nxml-ns-state) nxml-ns-state)))
 
 (defun nxml-ns-pop-state ()
-  "Change the state by ending an element.  The behaviour is undefined
+  "Change the state by ending an element.  The behavior is undefined
 if there is no open element."
   (setq nxml-ns-state (cdr nxml-ns-state)))