diff --git a/README.md b/README.md
index 1923b23..fb9d11c 100644
--- a/README.md
+++ b/README.md
@@ -104,6 +104,17 @@ Example: Mapping Control M.
 ```vim
 let vim_markdown_preview_hotkey='<C-m>'
 ```
+<a name='browser refresh key'></a>
+### The `vim_markdown_preview_browser_refresh_key` option
+
+By default, this plugin maps `ctrl+r` (Control+r) to be forwarded to the specified (or default) browser. This keybinding does not use vim syntax for keys, the keys are emulated with xdotools.
+
+Defalt: `ctrl+r`
+
+Example: Changing to F5
+```
+let g:vim_markdown_preview_browser_refresh_key='F5'
+```
 
 <a name='browser'></a>
 ### The `vim_markdown_preview_browser` option
diff --git a/plugin/vim-markdown-preview.vim b/plugin/vim-markdown-preview.vim
index 9b02d79..dcb66e9 100644
--- a/plugin/vim-markdown-preview.vim
+++ b/plugin/vim-markdown-preview.vim
@@ -58,6 +58,10 @@ if !exists("g:vim_markdown_preview_hotkey")
     let g:vim_markdown_preview_hotkey='<C-p>'
 endif
 
+if !exists("g:vim_markdown_preview_browser_refresh_key")
+    let g:vim_markdown_preview_browser_refresh_key="ctrl+r"
+endif
+
 function! Vim_Markdown_Preview()
   let b:curr_file = expand('%:p')
 
@@ -86,7 +90,7 @@ function! Vim_Markdown_Preview()
       let curr_wid = system('xdotool getwindowfocus')
       call system('xdotool windowmap ' . chrome_wid)
       call system('xdotool windowactivate ' . chrome_wid)
-      call system("xdotool key 'ctrl+r'")
+      call system("xdotool key" . g:vim_markdown_preview_browser_refresh_key)
       call system('xdotool windowactivate ' . curr_wid)
     endif
   endif
@@ -140,7 +144,7 @@ function! Vim_Markdown_Preview_Local()
       let curr_wid = system('xdotool getwindowfocus')
       call system('xdotool windowmap ' . chrome_wid)
       call system('xdotool windowactivate ' . chrome_wid)
-      call system("xdotool key 'ctrl+r'")
+      call system("xdotool key" . g:vim_markdown_preview_browser_refresh_key)
       call system('xdotool windowactivate ' . curr_wid)
     endif
   endif