diff --git a/README.md b/README.md
index 22f8f17..9894956 100644
--- a/README.md
+++ b/README.md
@@ -19,10 +19,11 @@ Same as other normal plugins, use your favourite plugin manager to install.
 This plugin is aiming for zero configuration, you just need to install and make
 sure this plugin loaded and it will automatically handle `colorcolumn`
 
-### char
+by default
 
 ```lua
-vim.g.virtcolumn_char = '▕' -- by default
+vim.g.virtcolumn_char = '▕' -- char to display the line
+vim.g.virtcolumn_priority = 10 -- priority of extmark
 ```
 
 ### highlight
diff --git a/plugin/virtcolumn.lua b/plugin/virtcolumn.lua
index be45502..3929ec9 100644
--- a/plugin/virtcolumn.lua
+++ b/plugin/virtcolumn.lua
@@ -1,4 +1,6 @@
---- vim.g.virtcolumn_char: ▕ by default
+--- Options:
+--- vim.g.virtcolumn_char = "▕"
+--- vim.g.virtcolumn_priority = 10
 
 local api = vim.api
 local ffi = require "ffi"
@@ -76,6 +78,7 @@ local function _refresh()
     local lines = api.nvim_buf_get_lines(curbuf, offset, vim.fn.line "w$" + debounce, false)
     local tabstop = vim.opt.tabstop:get()
     local char = vim.g.virtcolumn_char or "▕"
+    local priority = vim.g.virtcolumn_priority or 10
 
     for i = 1, #lines do
         for _, item in ipairs(items) do
@@ -86,7 +89,7 @@ local function _refresh()
                     virt_text_pos = "overlay",
                     hl_mode = "combine",
                     virt_text_win_col = item - 1,
-                    priority = 0,
+                    priority = priority,
                 })
             end
         end