diff --git a/nvim/ftdetect/dotfiles.vim b/nvim/ftdetect/dotfiles.vim
new file mode 100644
index 0000000..ff8ab5e
--- /dev/null
+++ b/nvim/ftdetect/dotfiles.vim
@@ -0,0 +1,7 @@
+function! s:genSrcInfo()
+  :call system('rm -rf .SRCINFO; makepkg --printsrcinfo > .SRCINFO')
+endfunction
+
+augroup dotfilesftdetect
+  autocmd BufWritePost PKGBUILD :call s:genSrcInfo()
+augroup END