diff --git a/runtime/syntax/json.vim b/runtime/syntax/json.vim
index e3210a9..3f49b0c 100644
--- a/runtime/syntax/json.vim
+++ b/runtime/syntax/json.vim
@@ -2,7 +2,7 @@
 " Language:	JSON
 " Maintainer:	vacancy
 " Previous Maintainer:	Eli Parra <eli@elzr.com>
-" Last Change:	2019 Jul 08
+" Last Change:	2019 Sep 17
 " Version:      0.12
 
 if !exists("main_syntax")
@@ -20,7 +20,7 @@
 " Syntax: JSON Keywords
 " Separated into a match and region because a region by itself is always greedy
 syn match  jsonKeywordMatch /"\([^"]\|\\\"\)\+"[[:blank:]\r\n]*\:/ contains=jsonKeyword
-if has('conceal')
+if has('conceal') && (!exists("g:vim_json_conceal") || g:vim_json_conceal==1)
    syn region  jsonKeyword matchgroup=jsonQuote start=/"/  end=/"\ze[[:blank:]\r\n]*\:/ concealends contained
 else
    syn region  jsonKeyword matchgroup=jsonQuote start=/"/  end=/"\ze[[:blank:]\r\n]*\:/ contained
@@ -31,7 +31,7 @@
 " Needs to come after keywords or else a json encoded string will break the
 " syntax
 syn match  jsonStringMatch /"\([^"]\|\\\"\)\+"\ze[[:blank:]\r\n]*[,}\]]/ contains=jsonString
-if has('conceal')
+if has('conceal') && (!exists("g:vim_json_conceal") || g:vim_json_conceal==1)
 	syn region  jsonString oneline matchgroup=jsonQuote start=/"/  skip=/\\\\\|\\"/  end=/"/ concealends contains=jsonEscape contained
 else
 	syn region  jsonString oneline matchgroup=jsonQuote start=/"/  skip=/\\\\\|\\"/  end=/"/ contains=jsonEscape contained