diff --git a/KeepersCompound.Lightmapper/PotentiallyVisibleSet.cs b/KeepersCompound.Lightmapper/PotentiallyVisibleSet.cs
index 566618f..99cc401 100644
--- a/KeepersCompound.Lightmapper/PotentiallyVisibleSet.cs
+++ b/KeepersCompound.Lightmapper/PotentiallyVisibleSet.cs
@@ -1,6 +1,7 @@
 using System.Collections;
 using System.Numerics;
 using KeepersCompound.LGS.Database.Chunks;
+using Serilog;
 
 namespace KeepersCompound.Lightmapper;
 
@@ -98,7 +99,6 @@ public class PotentiallyVisibleSet
     public PotentiallyVisibleSet(WorldRep.Cell[] cells)
     {
         _graph = new Node[cells.Length];
-        _edges = [];
 
         var portalCount = 0;
         foreach (var cell in cells)
@@ -106,6 +106,9 @@ public class PotentiallyVisibleSet
             portalCount += cell.PortalPolyCount;
         }
         
+        _edges = new List<Edge>(portalCount);
+        Log.Information("Mission contains {PortalCount} portals.", portalCount);
+        
         for (var i = 0; i < cells.Length; i++)
         {
             var cell = cells[i];