diff --git a/domjudge_utility/dump.py b/domjudge_utility/dump.py
index 419e8f5..147be89 100644
--- a/domjudge_utility/dump.py
+++ b/domjudge_utility/dump.py
@@ -93,7 +93,8 @@ def send_request(self, url, params={}):
         if res.status_code != 200:
             self.logger.error('An error occurred during request GET {}, errcode:{}'.format(
                 url, res.status_code))
-            exit()
+            raise RuntimeError(
+                "fetch failed. [url={}] [status_code={}]".format(url, res.status_code))
 
         return res