diff --git a/lua/navigator.lua b/lua/navigator.lua
index 704e981..9ea328b 100644
--- a/lua/navigator.lua
+++ b/lua/navigator.lua
@@ -5,6 +5,7 @@ _NgConfigValues = {
   preview_height = 0.35,
   height = 0.35,
   default_mapping = true,
+  combined_attach = "both", -- both: use both customized attach and navigator default attach, mine: only use my attach defined in vimrc
   on_attach = nil,
   -- function(client, bufnr)
   --   -- your on_attach will be called at end of navigator on_attach
diff --git a/lua/navigator/lspclient/attach.lua b/lua/navigator/lspclient/attach.lua
index 4ed81ff..b055e29 100644
--- a/lua/navigator/lspclient/attach.lua
+++ b/lua/navigator/lspclient/attach.lua
@@ -13,7 +13,6 @@ end
 local M = {}
 
 M.on_attach = function(client, bufnr)
-  log("on_attach")
   local uri = vim.uri_from_bufnr(bufnr)
   if uri == "file://" or uri == "file:///" or #uri < 11 then
     log("skip for float buffer", uri)
@@ -43,11 +42,11 @@ M.on_attach = function(client, bufnr)
   local config = require"navigator".config_values()
   trace(client.name, "navigator on attach")
   if config.on_attach ~= nil then
-    trace(client.name, "general attach")
+    log(client.name, "customized attach for all clients")
     config.on_attach(client, bufnr)
   end
   if config.lsp and config.lsp[client.name] and config.lsp[client.name].on_attach ~= nil then
-    trace(client.name, "custom attach")
+    log("lsp client specific attach for", client.name)
     config.lsp[client.name].on_attach(client, bufnr)
   end
 
diff --git a/lua/navigator/lspclient/clients.lua b/lua/navigator/lspclient/clients.lua
index 007b300..396c6af 100644
--- a/lua/navigator/lspclient/clients.lua
+++ b/lua/navigator/lspclient/clients.lua
@@ -316,6 +316,19 @@ local function wait_lsp_startup(ft, retry, lsp_opts)
     if lsp_opts[lspclient] ~= nil then
       -- log(lsp_opts[lspclient], cfg)
       cfg = vim.tbl_deep_extend("force", cfg, lsp_opts[lspclient])
+      if _NgConfigValues.combined_attach == "both" or _NgConfigValues.combined_attach == nil then
+        cfg.on_attach = on_attach
+      elseif _NgConfigValues == "mine" then
+        cfg.on_attach = function(client, bufnr)
+          if _NgConfigValues.on_attach then
+            _NgConfigValues.on_attach(client, bufnr)
+          end
+          if setups[lspclient] and setups[lspclient].on_attach then
+            setups[lspclient].on_attach(client, bufnr)
+          end
+
+        end
+      end
     end
 
     load_cfg(ft, lspclient, cfg, loaded)