diff --git a/src/delaunay_core/cell.rs b/src/delaunay_core/cell.rs
index 9e9eab8..773f0eb 100644
--- a/src/delaunay_core/cell.rs
+++ b/src/delaunay_core/cell.rs
@@ -1084,7 +1084,9 @@ mod tests {
 
         assert_eq!(facets.len(), 4);
         for facet in facets.iter() {
-            assert!(cell.facets().contains(facet));
+            // assert!(cell.facets().contains(facet));
+            let facet_vertices = facet.vertices();
+            assert!(cell.facets().iter().any(|f| f.vertices() == facet_vertices));
         }
 
         // Human readable output for cargo test -- --nocapture
diff --git a/src/delaunay_core/triangulation_data_structure.rs b/src/delaunay_core/triangulation_data_structure.rs
index ddff9fe..6a6ea9d 100644
--- a/src/delaunay_core/triangulation_data_structure.rs
+++ b/src/delaunay_core/triangulation_data_structure.rs
@@ -306,6 +306,12 @@ where
         self.cells
             .retain(|_, cell| !cell.contains_vertex_of(&supercell));
 
+        // Need Vertex to implement Eq and Hash to use the following code
+        // let supercell_vertices: HashSet<_> = supercell.vertices.iter().collect();
+        // self.cells.retain(|_, cell| {
+        //     !cell.vertices.iter().any(|v| supercell_vertices.contains(v))
+        // });
+
         Ok(self)
     }