diff --git a/.vimrc b/.vimrc
index 466794e..1df4829 100644
--- a/.vimrc
+++ b/.vimrc
@@ -400,6 +400,7 @@ let g:vim_markdown_fenced_languages = ['c++=cpp', 'viml=vim', 'bash=sh', 'ini=do
 " Preview markdown files with :PreviewMarkdown - needs mdr from
 " https://github.com/MichaelMure/mdr
 Plug 'skanehira/preview-markdown.vim'
+let g:preview_markdown_vertical = 1
 
 
 " The NERD Commenter: A plugin that allows for easy commenting of code for