diff --git a/lua/go/ts/nodes.lua b/lua/go/ts/nodes.lua
index 38b45b6..873e624 100644
--- a/lua/go/ts/nodes.lua
+++ b/lua/go/ts/nodes.lua
@@ -126,11 +126,12 @@ local nodestime = {}
 M.get_all_nodes = function(query, lang, defaults, bufnr, pos_row, pos_col, ntype)
   ulog(query, lang, defaults, pos_row, pos_col)
   bufnr = bufnr or api.nvim_get_current_buf()
+  local key = tostring(bufnr) .. query
   local filetime = fn.getftime(fn.expand('%'))
-  if nodes[bufnr] ~= nil and nodestime[bufnr] ~= nil and filetime == nodestime[bufnr] then
-    return nodes[bufnr]
+  if nodes[key] ~= nil and nodestime[key] ~= nil and filetime == nodestime[key] then
+    return nodes[key]
   end
-  -- ulog(bufnr, nodestime[bufnr], filetime)
+  -- ulog(bufnr, nodestime[key], filetime)
   -- todo a huge number
   pos_row = pos_row or 30000
   local success, parsed_query = pcall(function()
@@ -222,8 +223,8 @@ M.get_all_nodes = function(query, lang, defaults, bufnr, pos_row, pos_col, ntype
     end
   end
   ulog('total nodes got: ' .. tostring(#results))
-  nodes[bufnr] = results
-  nodestime[bufnr] = filetime
+  nodes[key] = results
+  nodestime[key] = filetime
   return results
 end
 
diff --git a/lua/tests/go_comment_spec.lua b/lua/tests/go_comment_spec.lua
index 1664423..6d731b9 100644
--- a/lua/tests/go_comment_spec.lua
+++ b/lua/tests/go_comment_spec.lua
@@ -1,33 +1,33 @@
 local eq = assert.are.same
 
-local busted = require("plenary/busted")
-local cur_dir = vim.fn.expand("%:p:h")
-describe("should get nodes  ", function()
+local busted = require('plenary/busted')
+local cur_dir = vim.fn.expand('%:p:h')
+describe('should get nodes  ', function()
   _GO_NVIM_CFG.verbose = true
-  _GO_NVIM_CFG.comment_placeholder = "   "
+  _GO_NVIM_CFG.comment_placeholder = '   '
 
-  local status = require("plenary.reload").reload_module("go.nvim")
-  status = require("plenary.reload").reload_module("nvim-treesitter/nvim-treesitter")
+  local status = require('plenary.reload').reload_module('go.nvim')
+  status = require('plenary.reload').reload_module('nvim-treesitter/nvim-treesitter')
 
-  local name = vim.fn.tempname() .. ".go"
-  print("tmp:" .. name)
+  local name = vim.fn.tempname() .. '.go'
+  print('tmp:' .. name)
   --
-  local path = cur_dir .. "/lua/tests/fixtures/ts/playlist.go" -- %:p:h ? %:p
+  local path = cur_dir .. '/lua/tests/fixtures/ts/playlist.go' -- %:p:h ? %:p
   local lines = vim.fn.readfile(path)
   vim.fn.writefile(lines, name)
   local cmd = "silent exe 'e " .. name .. "'"
   vim.cmd(cmd)
 
-  local bufn = vim.fn.bufnr("")
-  it("should get struct playlist and generate comments", function()
-    vim.fn.setpos(".", { bufn, 20, 14, 0 })
-    local query = require("go.comment").gen(20, 14)
-    eq("// createPlaylist function    ", query)
+  local bufn = vim.fn.bufnr('')
+  it('should get struct playlist and generate comments', function()
+    vim.fn.setpos('.', { bufn, 20, 14, 0 })
+    local query = require('go.comment').gen(20, 14)
+    eq('// createPlaylist function    ', query)
   end)
 
-  it("should get struct playlist and generate comments", function()
-    vim.fn.setpos(".", { bufn, 14, 4, 0 })
-    local query = require("go.comment").gen(14, 4)
-    eq("// playlist struct    ", query)
+  it('should get struct playlist and generate comments', function()
+    vim.fn.setpos('.', { bufn, 14, 4, 0 })
+    local query = require('go.comment').gen(14, 4)
+    eq('// playlist struct    ', query)
   end)
 end)