diff --git a/src/OECS/SparseSet.cs b/src/OECS/SparseSet.cs
index c1c91e3..e6842da 100644
--- a/src/OECS/SparseSet.cs
+++ b/src/OECS/SparseSet.cs
@@ -180,6 +180,7 @@ internal class SparseSet<T> : ISparseSet where T : struct
         {
             _sparse[_denseEntities[i].Id] = -1;
         }
+        Array.Clear(_denseEntities, 0, _count);
         _count = 0;
     }