diff --git a/runtime/ftplugin/vim.vim b/runtime/ftplugin/vim.vim
index f355d28..1f2e57c 100644
--- a/runtime/ftplugin/vim.vim
+++ b/runtime/ftplugin/vim.vim
@@ -1,7 +1,7 @@
 " Vim filetype plugin
 " Language:	Vim
 " Maintainer:	Bram Moolenaar <Bram@vim.org>
-" Last Change:	2014 Sep 07
+" Last Change:	2017 Nov 06
 
 " Only do this when not done yet for this buffer
 if exists("b:did_ftplugin")
@@ -25,6 +25,9 @@
 " keyword character.  E.g., for netrw#Nread().
 setlocal isk+=#
 
+" Use :help to lookup the keyword under the cursor with K.
+setlocal keywordprg=:help
+
 " Set 'comments' to format dashed lists in comments
 setlocal com=sO:\"\ -,mO:\"\ \ ,eO:\"\",:\"