diff --git a/README.md b/README.md
index 315b14d..8234f9f 100644
--- a/README.md
+++ b/README.md
@@ -203,7 +203,7 @@ command! -bang -nargs=* Ag
 " Similarly, we can apply it to fzf#vim#grep. To use ripgrep instead of ag:
 command! -bang -nargs=* Rg
   \ call fzf#vim#grep(
-  \   'rg --column --line-number --no-heading --color=always '.shellescape(<q-args>), 1,
+  \   'rg --column --line-number --no-heading --color=always --smart-case '.shellescape(<q-args>), 1,
   \   <bang>0 ? fzf#vim#with_preview('up:60%')
   \           : fzf#vim#with_preview('right:50%:hidden', '?'),
   \   <bang>0)
diff --git a/doc/fzf-vim.txt b/doc/fzf-vim.txt
index 0608f3e..db1a507 100644
--- a/doc/fzf-vim.txt
+++ b/doc/fzf-vim.txt
@@ -236,7 +236,7 @@ You can use autoload functions to define your own commands.
     " Similarly, we can apply it to fzf#vim#grep. To use ripgrep instead of ag:
     command! -bang -nargs=* Rg
       \ call fzf#vim#grep(
-      \   'rg --column --line-number --no-heading --color=always '.shellescape(<q-args>), 1,
+      \   'rg --column --line-number --no-heading --color=always --smart-case '.shellescape(<q-args>), 1,
       \   <bang>0 ? fzf#vim#with_preview('up:60%')
       \           : fzf#vim#with_preview('right:50%:hidden', '?'),
       \   <bang>0)