Index: branches/release-34/lib/MT/CMS/Dashboard.pm
===================================================================
--- branches/release-34/lib/MT/CMS/Dashboard.pm (revision 1865)
+++ branches/release-34/lib/MT/CMS/Dashboard.pm (revision 1885)
@@ -394,5 +394,5 @@
     $args->{limit} = 100;
 
-    my $iter = MT::ObjectTag->count_group_by($terms, $args);
+    my $iter = $app->model('objecttag')->count_group_by($terms, $args);
     my @tag_loop;
     my $ntags = 0;