diff --git a/.config/vim/ftplugin/asl.vim b/.config/vim/ftplugin/asl.vim
new file mode 100644
index 0000000..4cfbdde
--- /dev/null
+++ b/.config/vim/ftplugin/asl.vim
@@ -0,0 +1,3 @@
+" most files I've encountered use two spaces for indentation
+setlocal tabstop=2
+setlocal expandtab