diff --git a/mozilla/webtools/bugzilla/.bzrrev b/mozilla/webtools/bugzilla/.bzrrev
index 5075b493462..d8b33cd6943 100644
--- a/mozilla/webtools/bugzilla/.bzrrev
+++ b/mozilla/webtools/bugzilla/.bzrrev
@@ -1 +1 @@
-8235
\ No newline at end of file
+8236
\ No newline at end of file
diff --git a/mozilla/webtools/bugzilla/Bugzilla/WebService/Server.pm b/mozilla/webtools/bugzilla/Bugzilla/WebService/Server.pm
index 01ff907cd1a..a43ed204c9a 100644
--- a/mozilla/webtools/bugzilla/Bugzilla/WebService/Server.pm
+++ b/mozilla/webtools/bugzilla/Bugzilla/WebService/Server.pm
@@ -15,6 +15,7 @@ use Scalar::Util qw(blessed);
 
 sub handle_login {
     my ($self, $class, $method, $full_method) = @_;
+    ThrowCodeError('unknown_method', {method => $full_method}) if !$class;
     eval "require $class";
     ThrowCodeError('unknown_method', {method => $full_method}) if $@;
     return if ($class->login_exempt($method)