diff --git a/runtime/syntax/i3config.vim b/runtime/syntax/i3config.vim
index 6163da2..0018081 100644
--- a/runtime/syntax/i3config.vim
+++ b/runtime/syntax/i3config.vim
@@ -3,7 +3,7 @@
 " Original Author: Mohamed Boughaba <mohamed dot bgb at gmail dot com>
 " Maintainer: Quentin Hibon (github user hiqua)
 " Version: 0.4
-" Last Change: 2022 May 05
+" Last Change: 2022 Jun 05
 
 " References:
 " http://i3wm.org/docs/userguide.html#configuring
@@ -17,9 +17,6 @@
 
 scriptencoding utf-8
 
-" Error
-syn match i3ConfigError /.*/
-
 " Todo
 syn keyword i3ConfigTodo TODO FIXME XXX contained
 
@@ -180,13 +177,12 @@
 
 " Group mode/bar
 syn keyword i3ConfigBlockKeyword mode bar colors i3bar_command status_command position exec mode hidden_state modifier id position output background statusline tray_output tray_padding separator separator_symbol workspace_min_width workspace_buttons strip_workspace_numbers binding_mode_indicator focused_workspace active_workspace inactive_workspace urgent_workspace binding_mode contained
-syn region i3ConfigBlock start=+.*s\?{$+ end=+^}$+ contains=i3ConfigBlockKeyword,i3ConfigString,i3ConfigBind,i3ConfigComment,i3ConfigFont,i3ConfigFocusWrappingType,i3ConfigColor,i3ConfigVariable transparent keepend extend
+syn region i3ConfigBlock start=+^\s*[^#]*s\?{$+ end=+^\s*[^#]*}$+ contains=i3ConfigBlockKeyword,i3ConfigString,i3ConfigBind,i3ConfigComment,i3ConfigFont,i3ConfigFocusWrappingType,i3ConfigColor,i3ConfigVariable transparent keepend extend
 
 " Line continuation
 syn region i3ConfigLineCont start=/^.*\\$/ end=/^.*$/ contains=i3ConfigBlockKeyword,i3ConfigString,i3ConfigBind,i3ConfigComment,i3ConfigFont,i3ConfigFocusWrappingType,i3ConfigColor,i3ConfigVariable transparent keepend extend
 
 " Define the highlighting.
-hi def link i3ConfigError                           Error
 hi def link i3ConfigTodo                            Todo
 hi def link i3ConfigComment                         Comment
 hi def link i3ConfigFontContent                     Type