diff --git a/README-zh_CN.md b/README-zh_CN.md
index 1769fac..5bfbac7 100644
--- a/README-zh_CN.md
+++ b/README-zh_CN.md
@@ -298,7 +298,7 @@ binarizeThreshold | Optional | Not supported
 
 Awesome-qr.js 将使用以下默认值来填补自定义选项中缺少的部分。
 
-```json
+```
 {
 	size: 800,
 	margin: 20,
diff --git a/README.md b/README.md
index 2e48c65..232c27c 100644
--- a/README.md
+++ b/README.md
@@ -298,7 +298,7 @@ binarizeThreshold | Optional | Not supported
 
 Awesome-qr.js will use the values below for the missing fields in the custom option.
 
-```json
+```
 {
 	size: 800,
 	margin: 20,