diff -ruN lib/SOAP/Lite.pm lib-duration/SOAP/Lite.pm
--- lib/SOAP/Lite.pm	2007-12-20 20:32:01.000000000 -0500
+++ lib-duration/SOAP/Lite.pm	2007-12-20 20:30:29.000000000 -0500
@@ -799,7 +799,7 @@
           'dateTime' => 
 	      [75, sub { $_[0] =~ /^\d\d\d\d-\d\d-\d\dT\d\d:\d\d:\d\d(\.\d\d\d)?(Z|([+-]\d\d:\d\d))?$/; }, 'as_dateTime'],
           'duration' => 
-	      [80, sub { $_[0] =~ /^-?P(\d+Y)?(\d+M)?(\dD)?(T(\d+H)?(\d+M)?(\d+S)?)?$/; }, 'as_duration'],
+	      [80, sub { (length($_[0]) > 1) and $_[0] =~ /^-?P(\d+Y)?(\d+M)?(\dD)?(T(\d+H)?(\d+M)?(\d+S)?)?$/; }, 'as_duration'],
           'boolean' => 
 	      [90, sub { $_[0] =~ /^(true|false)$/i; }, 'as_boolean'],
           'anyURI' =>