diff --git a/runtime/lua/vim/_ftplugin/lua.lua b/runtime/lua/vim/_ftplugin/lua.lua
index d81393192d..778817a665 100644
--- a/runtime/lua/vim/_ftplugin/lua.lua
+++ b/runtime/lua/vim/_ftplugin/lua.lua
@@ -3,13 +3,15 @@ local M = {}
 --- @param module string
 ---@return string
 function M.includeexpr(module)
-  local fname = module:gsub('%.', '/')
+  module = module:gsub('%.', '/')
 
   local root = vim.fs.root(vim.api.nvim_buf_get_name(0), 'lua') or vim.fn.getcwd()
-  for _, suf in ipairs { '.lua', '/init.lua' } do
-    local path = vim.fs.joinpath(root, 'lua', fname .. suf)
-    if vim.uv.fs_stat(path) then
-      return path
+  for _, fname in ipairs { module, vim.fs.joinpath(root, 'lua', module) } do
+    for _, suf in ipairs { '.lua', '/init.lua' } do
+      local path = fname .. suf
+      if vim.uv.fs_stat(path) then
+        return path
+      end
     end
   end
 
diff --git a/test/functional/editor/ftplugin_spec.lua b/test/functional/editor/ftplugin_spec.lua
index 417c5df089..b7f323b38c 100644
--- a/test/functional/editor/ftplugin_spec.lua
+++ b/test/functional/editor/ftplugin_spec.lua
@@ -10,18 +10,18 @@ local eq = t.eq
 ---@param type string
 ---@return string
 local function stdpath(type)
-  return exec_lua([[return vim.fs.normalize(vim.fn.stdpath(...))]], type)
+  return exec_lua([[return vim.fs.abspath(vim.fn.stdpath(...))]], type)
 end
 
 ---@return string
 local function vimruntime()
-  return exec_lua [[ return vim.fs.normalize(vim.env.VIMRUNTIME) ]]
+  return exec_lua [[ return vim.fs.abspath(vim.env.VIMRUNTIME) ]]
 end
 
 ---@param module string
 ---@return string
 local function lua_includeexpr(module)
-  return exec_lua([[return require('vim._ftplugin.lua').includeexpr(...)]], module)
+  return exec_lua([[return vim.fs.abspath(require 'vim._ftplugin.lua'.includeexpr(...))]], module)
 end
 
 describe("ftplugin: Lua 'includeexpr'", function()
@@ -59,7 +59,12 @@ describe("ftplugin: Lua 'includeexpr'", function()
       write ++p
       edit %s/lua/runtime-foo/bar.lua
       write ++p
-    ]]):format(temp_dir, temp_dir))
+
+      edit %s/general-foo/bar/init.lua
+      write ++p
+      edit %s/general-foo/bar/baz.lua
+      write ++p
+    ]]):format(temp_dir, temp_dir, temp_dir, temp_dir))
   end)
 
   it('finds module in current repo', function()
@@ -94,4 +99,11 @@ describe("ftplugin: Lua 'includeexpr'", function()
     eq(temp_dir .. '/lua/runtime-foo/init.lua', lua_includeexpr('runtime-foo'))
     eq(temp_dir .. '/lua/runtime-foo/bar.lua', lua_includeexpr('runtime-foo.bar'))
   end)
+
+  it('non-Nvim-style Lua modules', function()
+    command('cd ' .. temp_dir)
+    eq(temp_dir .. '/general-foo/bar/init.lua', lua_includeexpr('general-foo.bar'))
+    eq(temp_dir .. '/general-foo/bar/baz.lua', lua_includeexpr('general-foo.bar.baz'))
+    command('cd -')
+  end)
 end)