diff --git a/autoload/SpaceVim/api/vim/buffer.vim b/autoload/SpaceVim/api/vim/buffer.vim
index a576d24e3..9b2522854 100644
--- a/autoload/SpaceVim/api/vim/buffer.vim
+++ b/autoload/SpaceVim/api/vim/buffer.vim
@@ -32,6 +32,14 @@
 "     initfunc: the function which will be call after creating buffer
 "
 "     cmd: the ex command which will be run after the new buffer is created
+"
+" get_option(bufnr, name)
+"
+" Gets a buffer option value. 
+"
+" set_option(buf, opt, value)  
+"
+" Set a buffer option value.
 
 
 let s:self = {}
diff --git a/doc/SpaceVim.txt b/doc/SpaceVim.txt
index e1f93a73c..612d7a753 100644
--- a/doc/SpaceVim.txt
+++ b/doc/SpaceVim.txt
@@ -6872,6 +6872,14 @@ is a dict with following keys:
 
     cmd: the ex command which will be run after the new buffer is created
 
+get_option(bufnr, name)
+
+Gets a buffer option value.
+
+set_option(buf, opt, value)
+
+Set a buffer option value.
+
 ==============================================================================
 VIM#COMMAND                                         *SpaceVim-api-vim-command*
 
diff --git a/lua/spacevim/api/vim/buffer.lua b/lua/spacevim/api/vim/buffer.lua
index 5ff670ace..c0d0b40e5 100644
--- a/lua/spacevim/api/vim/buffer.lua
+++ b/lua/spacevim/api/vim/buffer.lua
@@ -13,38 +13,33 @@ function M.create_buf(listed, scratch)
 end
 
 function M.set_lines(bufnr, startindex, endindex, replacement)
-    if startindex < 0 then
-        startindex = #vim.buffer(bufnr) + 1 + startindex
+  if startindex < 0 then
+    startindex = #vim.buffer(bufnr) + 1 + startindex
+  end
+  if endindex < 0 then
+    endindex = #vim.buffer(bufnr) + 1 + endindex
+  end
+  if #replacement == endindex - startindex then
+    for i = startindex, endindex - 1, 1 do
+      vim.buffer(bufnr)[i + 1] = replacement[i - startindex]
     end
-    if endindex < 0 then
-        endindex = #vim.buffer(bufnr) + 1 + endindex
+  else
+    if endindex < #vim.buffer(bufnr) then
+      for i = endindex + 1, #vim.buffer(bufnr), 1 do
+        replacement:add(vim.buffer(bufnr)[i])
+      end
     end
-    if #replacement == endindex - startindex then
-        for i = startindex, endindex - 1, 1
-        do
-            vim.buffer(bufnr)[i + 1] = replacement[i - startindex]
-        end
-    else
-        if endindex < #vim.buffer(bufnr) then
-            for i = endindex + 1, #vim.buffer(bufnr), 1
-            do
-                replacement:add(vim.buffer(bufnr)[i])
-            end
-        end
-        for i = startindex, #replacement + startindex - 1, 1
-        do
-            if i + 1 > #vim.buffer(bufnr) then
-                vim.buffer(bufnr):insert(replacement[i - startindex])
-            else
-                vim.buffer(bufnr)[i + 1] = replacement[i - startindex]
-            end
-        end
-        for i = #replacement + startindex + 1, #vim.buffer(bufnr), 1
-        do
-            vim.buffer(bufnr)[#replacement + startindex + 1] = nil
-        end
-
+    for i = startindex, #replacement + startindex - 1, 1 do
+      if i + 1 > #vim.buffer(bufnr) then
+        vim.buffer(bufnr):insert(replacement[i - startindex])
+      else
+        vim.buffer(bufnr)[i + 1] = replacement[i - startindex]
+      end
     end
+    for i = #replacement + startindex + 1, #vim.buffer(bufnr), 1 do
+      vim.buffer(bufnr)[#replacement + startindex + 1] = nil
+    end
+  end
 end
 
 function M.listed_buffers() -- {{{
@@ -53,24 +48,37 @@ end
 -- }}}
 
 function M.resize(size, ...)
-    local arg = {...}
-    local cmd = arg[1] or 'vertical'
-    vim.cmd(cmd .. ' resize ' .. size)
+  local arg = { ... }
+  local cmd = arg[1] or 'vertical'
+  vim.cmd(cmd .. ' resize ' .. size)
 end
 
 function M.open_pos(cmd, filename, line, col)
-    vim.cmd('silent ' .. cmd .. ' ' .. filename)
-    vim.fn.cursor(line, col)
+  vim.cmd('silent ' .. cmd .. ' ' .. filename)
+  vim.fn.cursor(line, col)
 end
 
 ---@param bufnr number the buffer number
 ---@param opt string option name
 ---@param value any option value
 function M.set_option(bufnr, opt, value)
-  
+  if vim.api.nvim_set_option_value then
+    return vim.api.nvim_set_option_value(opt, value, {
+      buf = bufnr
+    })
+  end
+  if vim.api.nvim_buf_set_option then
+    return vim.api.nvim_buf_set_option(bufnr, opt, value)
+  end
 end
 
+function M.get_option(bufnr, name)
+  if vim.api.nvim_get_option_value then
+    return vim.api.nvim_get_option_value(name, { buf = bufnr })
+  end
+  if vim.api.nvim_buf_get_option then
+    return vim.api.nvim_buf_get_option(bufnr, name)
+  end
+end
 
 return M
-
-
diff --git a/lua/spacevim/plugin/scrollbar.lua b/lua/spacevim/plugin/scrollbar.lua
index ca89a33ad..614223c14 100644
--- a/lua/spacevim/plugin/scrollbar.lua
+++ b/lua/spacevim/plugin/scrollbar.lua
@@ -9,6 +9,7 @@
 local M = {}
 
 local win = require('spacevim.api.vim.window')
+local buffer = require('spacevim.api.vim.buffer')
 
 local default_conf = {
   max_size = 10,
@@ -75,7 +76,7 @@ local function create_scrollbar_buffer(size, lines)
   if not vim.api.nvim_buf_is_valid(scrollbar_bufnr) then
     scrollbar_bufnr = vim.api.nvim_create_buf(false, true)
   end
-  vim.api.nvim_buf_set_option(scrollbar_bufnr, 'buftype', 'nofile')
+  buffer.set_option(scrollbar_bufnr, 'buftype', 'nofile')
   vim.api.nvim_buf_set_lines(scrollbar_bufnr, 0, -1, false, lines)
   return scrollbar_bufnr
 end