diff --git a/arkui/display_manager/oh_display_info.h b/arkui/display_manager/oh_display_info.h
index 641a72486c76bce540d5d469a83682e51370d0fc..1aaf08f6dff69213500e32c0ab1f8b8ffc8c92fb 100644
--- a/arkui/display_manager/oh_display_info.h
+++ b/arkui/display_manager/oh_display_info.h
@@ -127,7 +127,11 @@ typedef enum {
     /** @error Operation system abnormal */
     DISPLAY_MANAGER_ERROR_SYSTEM_ABNORMAL = 1400003,
 
-    /** @error Operation illegal param */
+    /**
+     * @error Operation illegal param.
+     *
+     * @since 20
+     */
     DISPLAY_MANAGER_ERROR_ILLEGAL_PARAM = 1400004,
 } NativeDisplayManager_ErrorCode;