http://bugs.gentoo.org/346037

--- app.cpp
+++ app.cpp
@@ -236,7 +236,6 @@
         pam.start("slim");
         pam.set_item(PAM::Authenticator::TTY, DisplayName);
         pam.set_item(PAM::Authenticator::Requestor, "root");
-        pam.set_item(PAM::Authenticator::Host, "localhost");
 
     }
     catch(PAM::Exception& e){