diff --git a/inxi b/inxi
index f798760..f3dd3c9 100755
--- a/inxi
+++ b/inxi
@@ -1,7 +1,7 @@
 #!/bin/bash
 ########################################################################
 ####  Script Name: inxi
-####  version: 0.5.11
+####  version: 0.5.12
 ####  Date: November 11 2008
 ########################################################################
 ####  inxi is a fork of infobash, the original bash sys info script by locsmif
@@ -261,7 +261,11 @@ error_handler()
 			;;
 		9)	error_message="unsupported debugging level: $2"
 			;;
-		10)error_message="the alt download url you provided: $2\nappears to be wrong, download aborted. Please note, the url\nneeds to end in /, without $SCRIPT_NAME, like: http://yoursite.com/downloads/"
+		10)
+			error_message="the alt download url you provided: $2\nappears to be wrong, download aborted. Please note, the url\nneeds to end in /, without $SCRIPT_NAME, like: http://yoursite.com/downloads/"
+			;;
+		11)
+			error_message="unsupported testing option argument: -! $2"
 			;;
 		*)	error_message="error unknown: $@"
 			set -- 99
@@ -585,6 +589,8 @@ get_parameters()
 						error_handler 10 "$OPTARG"
 					fi
 					;;
+				*)	error_handler 11 "$OPTARG"
+					;;
 			esac
 			;;
 		*)	error_handler 7 "$1"