diff --git a/mapgen.lua b/mapgen.lua
index e665add..ec2d8bc 100644
--- a/mapgen.lua
+++ b/mapgen.lua
@@ -113,7 +113,7 @@ rocksl.layergen=function(layer, minp, maxp, seed)
  end
 end
 
-local ignore_wherein=nil
+local ignore_wherein=1
 
 rocksl.veingen=function(veins,minp,maxp,seed)
  local side_length=(maxp.y-minp.y)