diff --git a/src/Collections/EcsGroup.cs b/src/Collections/EcsGroup.cs
index 2f7dd90..7c311f0 100644
--- a/src/Collections/EcsGroup.cs
+++ b/src/Collections/EcsGroup.cs
@@ -396,6 +396,7 @@ namespace DCFApixels.DragonECS
                     page.IndexesXOR = 0;
                     page.Count = 0;
                 }
+                _sparsePagesHandler.Dispose();
             }
         }
         public void Dispose()