diff --git a/fail2ban/server/datedetector.py b/fail2ban/server/datedetector.py
index ee4621c9..62c892aa 100644
--- a/fail2ban/server/datedetector.py
+++ b/fail2ban/server/datedetector.py
@@ -61,6 +61,8 @@ class DateDetector:
 			self.appendTemplate("%a %b %d %H:%M:%S")
 			# standard: Jan 23 21:59:59 
 			self.appendTemplate("%b %d %H:%M:%S")
+			# simple date: 2005-01-23 21:59:59 
+			self.appendTemplate("%Y-%m-%d %H:%M:%S")
 			# simple date: 2005/01/23 21:59:59 
 			self.appendTemplate("%Y/%m/%d %H:%M:%S")
 			# simple date too (from x11vnc): 23/01/2005 21:59:59