From 3f78f1520bd203039a1d69d644c16a182190a7c9 Mon Sep 17 00:00:00 2001
From: sebres <info@sebres.de>
Date: Tue, 28 Oct 2025 21:34:00 +0100
Subject: [PATCH] fixed typo in comparison by build of stream from filter
 options (see #4066)

---
 fail2ban/client/filterreader.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fail2ban/client/filterreader.py b/fail2ban/client/filterreader.py
index 0b6c0172..46c46f0e 100644
--- a/fail2ban/client/filterreader.py
+++ b/fail2ban/client/filterreader.py
@@ -89,7 +89,7 @@ class FilterReader(DefinitionInitConfigReader):
 				stream.insert(0 if opt == 'usedns' else prio0idx,
 					["set", jailName, opt, value])
 				prio0idx += 1
-			elif opt in ('datepattern'):
+			elif opt == 'datepattern':
 				stream.append(["set", jailName, opt, value])
 			elif opt == 'journalmatch':
 				for match in value.split("\n"):