diff --git a/autoload/jedi.vim b/autoload/jedi.vim
index 7ddf2a1..cd4b8eb 100644
--- a/autoload/jedi.vim
+++ b/autoload/jedi.vim
@@ -28,6 +28,7 @@ let s:default_settings = {
     \ 'show_call_signatures': 1,
     \ 'call_signature_escape': "'=`='",
     \ 'auto_close_doc': 1,
+    \ 'max_doc_height': 30,
     \ 'popup_select_first': 1,
     \ 'quickfix_window_height': 10,
     \ 'completions_enabled': 1,
@@ -233,9 +234,6 @@ function! jedi#show_documentation()
     setlocal nomodified
     setlocal filetype=rst
 
-    if !exists('g:jedi#max_doc_height')
-        let g:jedi#max_doc_height = 30
-    endif
     if l:doc_lines > g:jedi#max_doc_height " max lines for plugin
         let l:doc_lines = g:jedi#max_doc_height
     endif