diff --git a/install.sh b/install.sh
index 54b2987..cda2ec9 100755
--- a/install.sh
+++ b/install.sh
@@ -84,13 +84,19 @@ function configure_default {
     cp "$BASEDIR/resources/vimrc" "$HOME/.vimrc" ||
     echo vimrc defined!
 
-  [[ ! -f $HOME/.config/nvim/init.vim ]] &&
-    cp "$BASEDIR/resources/init.vim" "$HOME/.config/nvim/init.vim" ||
-    echo nvim init.vim defined!
+  configure_nvim
+  configure_nvim nvim-vanilla
+}
 
-  [[ ! -f $HOME/.config/nvim-vanilla/init.vim ]] &&
-    cp "$BASEDIR/resources/init.vim" "$HOME/.config/nvim-vanilla/init.vim" ||
-    echo nvim-vanilla init.vim defined!
+function configure_nvim {
+  local nvim_app=${1:-nvim}
+  if grep -q "\$HOME/.vimrc" "$HOME/.config/${nvim_app}/init.lua"; then
+    cat "$BASEDIR/resources/init.lua" "$HOME/.config/${nvim_app}/init.lua" >"$HOME/.config/${nvim_app}/init.lua.new"
+    mv "$HOME/.config/${nvim_app}/init.lua.new" "$HOME/.config/${nvim_app}/init.lua"
+    echo "${nvim_app} init.lua may load .vimrc newly created!"
+  else
+    echo "${nvim_app} init.lua may load .vimrc already defined!"
+  fi
 }
 
 function install_neovim {
diff --git a/resources/init.lua b/resources/init.lua
new file mode 100644
index 0000000..102e44f
--- /dev/null
+++ b/resources/init.lua
@@ -0,0 +1,6 @@
+-- legacy vimrc
+local vimrc = vim.fn.expand('~/.vimrc')
+if vim.fn.filereadable(vimrc) == 1 then
+  vim.cmd('source ' .. vimrc)
+end
+--------------------
diff --git a/resources/init.vim b/resources/init.vim
deleted file mode 100644
index 5618a4a..0000000
--- a/resources/init.vim
+++ /dev/null
@@ -1,4 +0,0 @@
-if filereadable(expand('~/.vimrc'))
-  source ~/.vimrc
-endif
-