diff --git a/DocService/sources/canvasservice.js b/DocService/sources/canvasservice.js
index 5d9d9d6a..55d6962f 100644
--- a/DocService/sources/canvasservice.js
+++ b/DocService/sources/canvasservice.js
@@ -481,7 +481,7 @@ function* commandOpen(ctx, conn, cmd, outputData, opt_upsertRes, opt_bIsRestore)
   if (opt_upsertRes) {
     upsertRes = opt_upsertRes;
   } else {
-    upsertRes = yield commandOpenStartPromise(ctx, cmd.getDocId(), utils.getBaseUrlByConnection(ctx, conn));
+    upsertRes = yield commandOpenStartPromise(ctx, cmd.getDocId(), utils.getBaseUrlByConnection(ctx, conn), undefined, cmd.getFormat());
   }
   let bCreate = upsertRes.isInsert;
   let needAddTask = bCreate;