diff --git a/util/data_util.py b/util/data_util.py
index 69fb417..d2a7818 100644
--- a/util/data_util.py
+++ b/util/data_util.py
@@ -201,7 +201,7 @@ def parse_page_num(page_list):
             continue
         pages.append(min(numbers))
         total.append(max(numbers))
-    return pages, int(max(total))
+    return pages, int(max(total if total else ['1']))
 
 
 def handle_tiny_int(num):