diff --git a/lib/WebGUI/Form/ClassName.pm b/lib/WebGUI/Form/ClassName.pm
index c6f018499..73fb31bca 100644
--- a/lib/WebGUI/Form/ClassName.pm
+++ b/lib/WebGUI/Form/ClassName.pm
@@ -71,7 +71,7 @@ Returns a class name which has been taint checked.
 sub getValueFromPost {
 	my $self = shift;
 	my $value = $self->session->form->param($self->get("name"));
-	$value =~ s/[^\w\d\s]//g;
+	$value =~ s/[^\w\d\s:]//g;
         return $value;
 }