diff --git a/ChangeLog b/ChangeLog
index 246223e3..ba062873 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -36,6 +36,8 @@ ver. 0.8.12 (2014/01/XX) - things-can-only-get-better
     a specific jail.
   - Filter dovecot reordered session and TLS items in regex with wider scope
     for session characters. Thanks Ivo Truxa. Closes gh-586
+  - A single bad failregex or command syntax in configuration files won't stop
+    fail2ban from starting. Thanks Tomasz Ciolek. Closes gh-585.
 
 - Enhancements:
   - long names on jails documented based on iptables limit of 30 less
diff --git a/THANKS b/THANKS
index 9224d207..a5ef4fda 100644
--- a/THANKS
+++ b/THANKS
@@ -82,6 +82,7 @@ Stephen Gildea
 Steven Hiscocks
 Tom Pike
 Tomas Pihl
+Tomasz Ciolek
 Tyler
 Vaclav Misek
 Vincent Deffontaines
diff --git a/fail2ban-client b/fail2ban-client
index 1237680b..0f863ab0 100755
--- a/fail2ban-client
+++ b/fail2ban-client
@@ -145,6 +145,7 @@ class Fail2banClient:
 
 	def __processCmd(self, cmd, showRet = True):
 		beautifier = Beautifier()
+		ret = True
 		for c in cmd:
 			beautifier.setInputCmd(c)
 			try:
@@ -155,10 +156,10 @@ class Fail2banClient:
 					if showRet:
 						print beautifier.beautify(ret[1])
 				else:
+					ret = False
 					logSys.error("NOK: " + `ret[1].args`)
 					if showRet:
 						print beautifier.beautifyError(ret[1])
-					return False
 			except socket.error:
 				if showRet:
 					logSys.error("Unable to contact server. Is it running?")
@@ -167,7 +168,7 @@ class Fail2banClient:
 				if showRet:
 					logSys.error(e)
 				return False
-		return True
+		return ret
 
 	##
 	# Process a command line.