diff --git a/lib/Lacuna/DB/Result/Building/Archaeology.pm b/lib/Lacuna/DB/Result/Building/Archaeology.pm
index 91e49906..3b9a0b95 100644
--- a/lib/Lacuna/DB/Result/Building/Archaeology.pm
+++ b/lib/Lacuna/DB/Result/Building/Archaeology.pm
@@ -637,7 +637,7 @@ sub search_for_glyph {
     $body->update;
     $self->start_work({
         ore_type    => $ore,
-    }, 60*60*6)->update;
+    }, 60*60*6 - 600 )->update;
 }
 
 before finish_work => sub {