diff --git a/lib/Lacuna/DB/Result/Map/Body/Planet.pm b/lib/Lacuna/DB/Result/Map/Body/Planet.pm
index 14ce659a..32df0717 100644
--- a/lib/Lacuna/DB/Result/Map/Body/Planet.pm
+++ b/lib/Lacuna/DB/Result/Map/Body/Planet.pm
@@ -46,7 +46,7 @@ sub sorted_plans {
     my @sorted_plans = sort {
             $a->class->sortable_name cmp $b->class->sortable_name 
         ||  $a->level <=> $b->level
-        ||  $b->extra_build_level <=> $a->extra_build_level
+        ||  $a->extra_build_level <=> $b->extra_build_level
         } @{$self->plan_cache};
     return \@sorted_plans;
 }