diff --git a/runtime/doc/autocmd.txt b/runtime/doc/autocmd.txt
index 4536d5b..5f1231c 100644
--- a/runtime/doc/autocmd.txt
+++ b/runtime/doc/autocmd.txt
@@ -54,7 +54,7 @@
 :au[tocmd] [group] {event} {pat} [++once] [++nested] {cmd}
 			Add {cmd} to the list of commands that Vim will
 			execute automatically on {event} for a file matching
-			{pat} |autocmd-patterns|. 
+			{pat} |autocmd-patterns|.
 			Here {event} cannot be "*".  *E1155*
 			Note: A quote character is seen as argument to the
 			:autocmd and won't start a comment.