diff --git a/.vim/ftdetect/prolog.vim b/.vim/ftdetect/prolog.vim
new file mode 100644
index 0000000..38eff75
--- /dev/null
+++ b/.vim/ftdetect/prolog.vim
@@ -0,0 +1 @@
+autocmd BufNewFile,BufReadPost *.pl set filetype=prolog