diff --git a/bundle/flygrep.nvim/README.md b/bundle/flygrep.nvim/README.md
index 14ab945d7..69ac01d01 100644
--- a/bundle/flygrep.nvim/README.md
+++ b/bundle/flygrep.nvim/README.md
@@ -96,6 +96,7 @@ require('flygrep').setup({
 | `<C-v>`              | open item in vertical split window |
 | `<C-t>`              | open item in new tabpage           |
 | `<C-p>`              | toggle preview window              |
+| `<C-h>`              | toggle display hidden files        |
 
 ## Feedback
 
diff --git a/bundle/flygrep.nvim/lua/flygrep.lua b/bundle/flygrep.nvim/lua/flygrep.lua
index 5727f1c79..9d6644e8c 100644
--- a/bundle/flygrep.nvim/lua/flygrep.lua
+++ b/bundle/flygrep.nvim/lua/flygrep.lua
@@ -20,6 +20,7 @@ local grep_input = ''
 local search_jobid = -1
 local search_hi_id = -1
 local fix_string = false
+local include_hidden_file = false
 
 -- all buffers
 local result_bufid = -1
@@ -48,6 +49,9 @@ local function build_grep_command()
   for _, v in ipairs(conf.command.default_opts) do
     table.insert(cmd, v)
   end
+  if include_hidden_file then
+    table.insert(cmd, conf.command.hidden_opt)
+  end
   if fix_string then
     table.insert(cmd, conf.command.fixed_string_opt)
   else
@@ -143,6 +147,11 @@ local function build_prompt_title()
   return t
 end
 
+local function toggle_hidden_file()
+  include_hidden_file = not include_hidden_file
+  vim.cmd('doautocmd TextChangedI')
+end
+
 local function toggle_fix_string()
   fix_string = not fix_string
   vim.cmd('doautocmd TextChangedI')
@@ -416,6 +425,10 @@ local function open_win()
     toggle_fix_string()
     update_result_count()
   end, { buffer = prompt_bufid })
+  vim.keymap.set('i', '<C-h>', function()
+    toggle_hidden_file()
+    update_result_count()
+  end, { buffer = prompt_bufid })
   vim.keymap.set('i', '<C-p>', function()
     toggle_preview_win()
   end, { buffer = prompt_bufid })