diff --git a/en/application-dev/reference/apis/js-apis-filemanager.md b/en/application-dev/reference/apis/js-apis-filemanager.md
index 56371fb3b9eb367009bd0d2ec8b55810d23513ed..c165c9e8bd9cea590a511d59abc4ac77c0301990 100644
--- a/en/application-dev/reference/apis/js-apis-filemanager.md
+++ b/en/application-dev/reference/apis/js-apis-filemanager.md
@@ -175,7 +175,7 @@ Creates a file in the specified path in asynchronous mode. This API uses a promi
 
   | Type| Description|
   | --- | -- |
-  | string | Promise used to return the URI of the file created.|
+  | Promise<string> | Promise used to return the URI of the file created.|
 
 - Error
   | Error Info| Error Code|Description|