diff --git a/parts/main.vim b/parts/main.vim
index 2f22ab6..45b74be 100644
--- a/parts/main.vim
+++ b/parts/main.vim
@@ -80,7 +80,7 @@ nnoremap <C-o> :set tabstop=8 shiftwidth=8 softtabstop=4 noexpandtab<CR>
 
 " Autodetect filetypes and set proper indentation
 " Default: 4, with tabs.
-set tabstop=4 shiftwidth=4 softtabstop=4 noexpandtab
+setlocal tabstop=4 shiftwidth=4 softtabstop=4 noexpandtab
 augroup tabsize_gp
     autocmd!
     autocmd Filetype py setlocal tabstop=4 shiftwidth=4 softtabstop=4 noexpandtab