diff --git a/monkey/infection_monkey/exploit/zerologon.py b/monkey/infection_monkey/exploit/zerologon.py
index a605e6a6c..75e7d96f0 100644
--- a/monkey/infection_monkey/exploit/zerologon.py
+++ b/monkey/infection_monkey/exploit/zerologon.py
@@ -46,7 +46,7 @@ CREDENTIALS_STOLEN_EVENT_TAGS = frozenset(
     }
 )
 
-PASSWORD_RESTORATION_EVENT_TAGS = frozenset(ZEROLOGON_EXPLOITER_TAG)
+PASSWORD_RESTORATION_EVENT_TAGS = frozenset({ZEROLOGON_EXPLOITER_TAG})
 
 
 class ZerologonExploiter(HostExploiter):