diff --git a/plug.vim b/plug.vim
index 229053d..cabeb4f 100644
--- a/plug.vim
+++ b/plug.vim
@@ -1901,7 +1901,7 @@ function! s:preview_commit()
 
   execute 'pedit' sha
   wincmd P
-  setlocal filetype=git buftype=nofile nobuflisted
+  setlocal filetype=git buftype=nofile nobuflisted modifiable
   execute 'silent read !cd' s:shellesc(g:plugs[name].dir) '&& git show --pretty=medium' sha
   normal! gg"_dd
   setlocal nomodifiable