diff --git a/src/osmo_gsm_tester/resource.py b/src/osmo_gsm_tester/resource.py
index f1697ea..7e55129 100644
--- a/src/osmo_gsm_tester/resource.py
+++ b/src/osmo_gsm_tester/resource.py
@@ -208,7 +208,7 @@
             return next_msisdn
 
 
-class NoResourceExn(Exception):
+class NoResourceExn(log.Error):
     pass
 
 class Resources(dict):