diff --git a/apps/resm/tasks.py b/apps/resm/tasks.py
index b1b7ef5..2ec9403 100644
--- a/apps/resm/tasks.py
+++ b/apps/resm/tasks.py
@@ -415,6 +415,8 @@ def save_pdf_from_scihub(paper:Paper):
         paper.has_fulltext = True
         paper.has_fulltext_pdf = True
         paper.save(update_fields=["has_fulltext", "has_fulltext_pdf"])
+        return "success"
     else:
         paper.save_fail_reason(err_msg)
+        return err_msg
 # https://sci.bban.top/pdf/10.1016/j.conbuildmat.2020.121016.pdf?download=true
\ No newline at end of file