diff --git a/doc/airline.txt b/doc/airline.txt
index 11454e94..241aefd0 100644
--- a/doc/airline.txt
+++ b/doc/airline.txt
@@ -491,7 +491,7 @@ eclim <https://eclim.org>
 <
 * disable detection of whitespace errors. >
   " useful to call for particular file types (e.g., in "ftplugin/*")
-  silent! call airline#extensions#whitespace#disable
+  silent! call airline#extensions#whitespace#disable()
 <
 * customize the type of mixed indent checking to perform. >
   " must be all spaces or all tabs before the first non-whitespace character