diff --git a/README.md b/README.md
index ce74f65..8f7f44b 100644
--- a/README.md
+++ b/README.md
@@ -56,8 +56,8 @@ Commands
 | `Buffers`        | Open buffers                                                              |
 | `Colors`         | Color schemes                                                             |
 | `Ag [PATTERN]`   | [ag][ag] search result (`ALT-A` to select all, `ALT-D` to deselect all)   |
-| `Lines`          | Lines in loaded buffers                                                   |
-| `BLines`         | Lines in the current buffer                                               |
+| `Lines [QUERY]`  | Lines in loaded buffers                                                   |
+| `BLines [QUERY]` | Lines in the current buffer                                               |
 | `Tags [QUERY]`   | Tags in the project (`ctags -R`)                                          |
 | `BTags [QUERY]`  | Tags in the current buffer                                                |
 | `Marks`          | Marks                                                                     |
diff --git a/autoload/fzf/vim.vim b/autoload/fzf/vim.vim
index 12fb4eb..f3510c9 100644
--- a/autoload/fzf/vim.vim
+++ b/autoload/fzf/vim.vim
@@ -259,11 +259,13 @@ endfunction
 function! fzf#vim#lines(...)
   let [display_bufnames, lines] = fzf#vim#_lines(1)
   let nth = display_bufnames ? 3 : 2
+  let [query, args] = (a:0 && type(a:1) == type('')) ?
+        \ [a:1, a:000[1:]] : ['', a:000]
   return s:fzf(fzf#vim#wrap({
   \ 'source':  lines,
   \ 'sink*':   s:function('s:line_handler'),
-  \ 'options': '+m --tiebreak=index --prompt "Lines> " --ansi --extended --nth='.nth.'.. --reverse --tabstop=1'
-  \}), a:000)
+  \ 'options': '+m --tiebreak=index --prompt "Lines> " --ansi --extended --nth='.nth.'.. --reverse --tabstop=1'.s:q(query)
+  \}), args)
 endfunction
 
 " ------------------------------------------------------------------
@@ -289,11 +291,13 @@ function! s:buffer_lines()
 endfunction
 
 function! fzf#vim#buffer_lines(...)
+  let [query, args] = (a:0 && type(a:1) == type('')) ?
+        \ [a:1, a:000[1:]] : ['', a:000]
   return s:fzf(fzf#vim#wrap({
   \ 'source':  s:buffer_lines(),
   \ 'sink*':   s:function('s:buffer_line_handler'),
-  \ 'options': '+m --tiebreak=index --prompt "BLines> " --ansi --extended --nth=2.. --reverse --tabstop=1'
-  \}), a:000)
+  \ 'options': '+m --tiebreak=index --prompt "BLines> " --ansi --extended --nth=2.. --reverse --tabstop=1'.s:q(query)
+  \}), args)
 endfunction
 
 " ------------------------------------------------------------------
@@ -575,7 +579,7 @@ function! s:btags_sink(lines)
 endfunction
 
 function! s:q(query)
-  return ' --query "'.escape(a:query, '"').'"'
+  return ' --query "'.escape(a:query, '"\').'"'
 endfunction
 
 " query, [[tag commands], options]
diff --git a/doc/fzf-vim.txt b/doc/fzf-vim.txt
index b8d82e7..9248fb1 100644
--- a/doc/fzf-vim.txt
+++ b/doc/fzf-vim.txt
@@ -80,8 +80,8 @@ COMMANDS                                                      *fzf-vim-commands*
   `Buffers`         | Open buffers
   `Colors`          | Color schemes
   `Ag [PATTERN]`    | {ag}{5} search result (ALT-A to select all, ALT-D to deselect all)
-  `Lines`           | Lines in loaded buffers
-  `BLines`          | Lines in the current buffer
+  `Lines [QUERY]`   | Lines in loaded buffers
+  `BLines [QUERY]`  | Lines in the current buffer
   `Tags [QUERY]`    | Tags in the project ( `ctags -R` )
   `BTags [QUERY]`   | Tags in the current buffer
   `Marks`           | Marks
diff --git a/plugin/fzf.vim b/plugin/fzf.vim
index 53eed62..fd843b4 100644
--- a/plugin/fzf.vim
+++ b/plugin/fzf.vim
@@ -45,8 +45,8 @@ call s:defs([
 \'command! -bang -nargs=? -complete=dir Files  call fzf#vim#files(<q-args>, s:w(<bang>0))',
 \'command! -bang -nargs=? GitFiles             call fzf#vim#gitfiles(<q-args>, s:w(<bang>0))',
 \'command! -bang Buffers                       call fzf#vim#buffers(s:w(<bang>0))',
-\'command! -bang Lines                         call fzf#vim#lines(s:w(<bang>0))',
-\'command! -bang BLines                        call fzf#vim#buffer_lines(s:w(<bang>0))',
+\'command! -bang -nargs=* Lines                call fzf#vim#lines(<q-args>, s:w(<bang>0))',
+\'command! -bang -nargs=* BLines               call fzf#vim#buffer_lines(<q-args>, s:w(<bang>0))',
 \'command! -bang Colors                        call fzf#vim#colors(s:w(<bang>0))',
 \'command! -bang -nargs=1 -complete=dir Locate call fzf#vim#locate(<q-args>, s:w(<bang>0))',
 \'command! -bang -nargs=* Ag                   call fzf#vim#ag(<q-args>, s:w(<bang>0))',