diff --git a/api/@ohos.ability.wantConstant.d.ts b/api/@ohos.ability.wantConstant.d.ts
index c571dbe255c2b868adb3d6762b81be8748782882..c90f0e36abd91dd24651386d90c80dcea0dd41d6 100644
--- a/api/@ohos.ability.wantConstant.d.ts
+++ b/api/@ohos.ability.wantConstant.d.ts
@@ -215,6 +215,14 @@ declare namespace wantConstant {
      * @since 8
      */
     ACTION_APP_ACCOUNT_OAUTH = "ohos.account.appAccount.action.oauth",
+
+    /**
+     * Indicates the action of downloading application from application market.
+     *
+     * @since 9
+     * @systemapi Hide this for inner system use.
+     */
+    ACTION_MARKER_DOWNLOAD = "ohos.want.action.marketDownload"
   }
 
   /**
@@ -352,4 +360,4 @@ declare namespace wantConstant {
   }
 }
 
-export default wantConstant;
\ No newline at end of file
+export default wantConstant;