diff --git a/vimrc b/vimrc
index 98079e2..e39ebab 100644
--- a/vimrc
+++ b/vimrc
@@ -75,6 +75,8 @@ set ttimeout
 set ttimeoutlen=100
 set formatoptions+=j
 set autoread
+" https://github.com/tpope/vim-sensible/issues/142:
+set synmaxcol=500
 
 " Enable 24-bit colours.
 " https://github.com/alacritty/alacritty/issues/109#issuecomment-440353106