diff --git a/zh-cn/application-dev/reference/apis/js-apis-data-preferences.md b/zh-cn/application-dev/reference/apis/js-apis-data-preferences.md
index d13c1d5197fc30eb0d8dc4c5f37f41d7bcf10b66..e3d6fce05ebe584e5ca15de6e5cd9e1d2347a595 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-data-preferences.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-data-preferences.md
@@ -382,7 +382,7 @@ let promise = preferences.put('startup', 'auto');
 promise.then(() => {
     console.info("Succeeded in putting value of 'startup'.");
 }).catch((err) => {
-    console.info("Failed to put value of 'startup'. Cause: " + err));
+    console.info("Failed to put value of 'startup'. Cause: " + err);
 })
 ```