diff --git a/lua/neogen/config.lua b/lua/neogen/config.lua
index efe745b..c8b6145 100644
--- a/lua/neogen/config.lua
+++ b/lua/neogen/config.lua
@@ -6,6 +6,14 @@ end
 
 config.setup = function(default, user)
     local data = vim.tbl_deep_extend("keep", user or {}, default)
+    -- fetch configs if users have configuration
+    for ft, conf in pairs(data.languages) do
+        local ok, ft_config = pcall(require, "neogen.configurations." .. ft)
+        if ok then
+            data.languages[ft] = vim.tbl_deep_extend("keep", conf, ft_config)
+        end
+    end
+
     setmetatable(data.languages, {
         __index = function(langs, ft)
             local ok, ft_config = pcall(require, "neogen.configurations." .. ft)