diff --git a/lib/Lacuna/Role/LCOT.pm b/lib/Lacuna/Role/LCOT.pm
index 099b50e7..0b4554c7 100644
--- a/lib/Lacuna/Role/LCOT.pm
+++ b/lib/Lacuna/Role/LCOT.pm
@@ -25,6 +25,13 @@ sub image_level {
     return $self->image;
 }
 
+around can_build => sub {
+    my ($orig, $self, $body) = @_;
+    if ($body->get_plan(ref $self, 1)) {
+        return $orig->($self, $body);
+    }
+    confess [1013,"You can't build the Lost City of Tyleon without knowledge left behind by the Great Race."];
+};