diff --git a/doc/jdtls.txt b/doc/jdtls.txt
index 9f82576..d41ac79 100644
--- a/doc/jdtls.txt
+++ b/doc/jdtls.txt
@@ -1,13 +1,18 @@
 ==============================================================================
 LSP extensions for Neovim and eclipse.jdt.ls                             *jdtls*
 
-M.start_or_attach({config})                              *jdtls.start_or_attach*
+                                                         *jdtls.start_or_attach*
+M.start_or_attach({config}, {opts?}, {start_opts?})
      Start the language server (if not started), and attach the current buffer.
 
 
     Parameters: ~
-        {config}  (table)  configuration. See |vim.lsp.start_client|
-                           @return integer? client_id
+        {config}       (table<string,any>)  configuration. See |vim.lsp.start_client|
+        {opts?}        (jdtls.start.opts)
+        {start_opts?}  (lsp.StartOpts)      options passed to vim.lsp.start
+
+    Returns: ~
+        (integer|nil)  client_id
 
 
 M.organize_imports()                                    *jdtls.organize_imports*
diff --git a/lua/jdtls.lua b/lua/jdtls.lua
index 67134ed..d81e7b9 100644
--- a/lua/jdtls.lua
+++ b/lua/jdtls.lua
@@ -33,10 +33,12 @@ local M = {
 
 --- Start the language server (if not started), and attach the current buffer.
 ---
----@param config table configuration. See |vim.lsp.start_client|
----@return integer? client_id
-function M.start_or_attach(config)
-  return setup.start_or_attach(config)
+---@param config table<string, any> configuration. See |vim.lsp.start_client|
+---@param opts? jdtls.start.opts
+---@param start_opts? lsp.StartOpts options passed to vim.lsp.start
+---@return integer|nil client_id
+function M.start_or_attach(config, opts, start_opts)
+  return setup.start_or_attach(config, opts, start_opts)
 end
 
 
diff --git a/lua/jdtls/setup.lua b/lua/jdtls/setup.lua
index 9b7bb02..9e4f50c 100644
--- a/lua/jdtls/setup.lua
+++ b/lua/jdtls/setup.lua
@@ -251,9 +251,13 @@ end
 ---@field dap? JdtSetupDapOpts
 
 
+--- Start the language server (if not started), and attach the current buffer.
+---
+---@param config table<string, any> configuration. See |vim.lsp.start_client|
 ---@param opts? jdtls.start.opts
+---@param start_opts? lsp.StartOpts options passed to vim.lsp.start
 ---@return integer? client_id
-function M.start_or_attach(config, opts)
+function M.start_or_attach(config, opts, start_opts)
   opts = opts or {}
   assert(config, 'config is required')
   assert(
@@ -316,7 +320,7 @@ function M.start_or_attach(config, opts)
     }
   })
   maybe_implicit_save()
-  return vim.lsp.start(config)
+  return vim.lsp.start(config, start_opts)
 end