diff --git a/ChangeLog b/ChangeLog
index edf4591c..fb00db91 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -31,6 +31,8 @@ ver. 0.8.12 (2013/12/XX) - things-can-only-get-better
     Closes gh-516
   - Asynchat changed to use push method which verifys whether all data was
 	  send. This ensures that all data is sent before closing the connection.
+  - Removed unnecessary reference to as yet undeclared $jail_name when checking
+    a specific jail.
 
 - Enhancements:
   - added firewallcmd-ipset action
diff --git a/files/nagios/check_fail2ban b/files/nagios/check_fail2ban
index d4f9834f..fc88e654 100755
--- a/files/nagios/check_fail2ban
+++ b/files/nagios/check_fail2ban
@@ -191,7 +191,7 @@ if ($jail_specific) {
     else {
         $how_many_banned = int($current_ban_number);
         $return_print = $how_many_banned.' current banned IP(s) for the specific jail '.$jail_specific;
-        $perf_print .= "$jail_name.currentBannedIP=$current_ban_number " if ($perfdata_value);
+        $perf_print .= "$current_ban_number " if ($perfdata_value);
     }
 }
 ### To analyze all the jail