diff --git a/.vimrc b/.vimrc
index b49ce5e..009f2ac 100644
--- a/.vimrc
+++ b/.vimrc
@@ -62,6 +62,9 @@ map <4-MiddleMouse> <Nop>
 nnoremap <C-L> :nohl<CR>:diffupdate<CR><C-L>
 set pastetoggle=<F2>
 
+" Toggle line numbers
+nnoremap <F3> :set number!<CR>
+
 " If the current buffer has never been saved, it will have no name,
 " call the file browser to save it, otherwise just save it.
 command! -nargs=0 -bar Update if &modified