diff --git a/testing/test_filter.py b/testing/test_filter.py
index 9d31a17..f764762 100755
--- a/testing/test_filter.py
+++ b/testing/test_filter.py
@@ -864,22 +864,6 @@ def test_bad_shaped():
 
     check_result(bf)
 
-@pytest.mark.xfail
-def test_no_contact():
-    cubeA = vtkCubeSource()
-    cubeA.SetCenter(-1, 0, 0)
-
-    cubeB = vtkCubeSource()
-    cubeB.SetCenter(1, 0, 0)
-
-    bf = vtkPolyDataBooleanFilter()
-    bf.SetInputConnection(0, cubeA.GetOutputPort())
-    bf.SetInputConnection(1, cubeB.GetOutputPort())
-    bf.SetOperModeToNone()
-    bf.Update()
-
-    check_result(bf)
-
 @pytest.mark.xfail
 def test_self_intersecting_polys():
     cube = vtkCubeSource()
@@ -968,3 +952,30 @@ def test_invalid_capt_pts():
     bf.Update()
 
     check_result(bf)
+
+@pytest.mark.xfail
+def test_invalid_capt_pts_2():
+    reader = vtkPolyDataReader()
+    reader.SetFileName('data/cross.vtk')
+
+    cyl = vtkCylinderSource()
+    cyl.SetHeight(2.5)
+    cyl.SetResolution(12)
+
+    z = .0000025
+
+    tra = vtkTransform()
+    tra.RotateZ(45)
+    tra.Translate(0, 0, z)
+
+    tf = vtkTransformPolyDataFilter()
+    tf.SetTransform(tra)
+    tf.SetInputConnection(cyl.GetOutputPort())
+
+    bf = vtkPolyDataBooleanFilter()
+    bf.SetInputConnection(0, reader.GetOutputPort())
+    bf.SetInputConnection(1, tf.GetOutputPort())
+    bf.SetOperModeToNone()
+    bf.Update()
+
+    check_result(bf)
diff --git a/vtkPolyDataContactFilter.cxx b/vtkPolyDataContactFilter.cxx
index 0278503..7720dd5 100644
--- a/vtkPolyDataContactFilter.cxx
+++ b/vtkPolyDataContactFilter.cxx
@@ -351,7 +351,7 @@ void vtkPolyDataContactFilter::GetInvalidEdges (vtkPolyData *pd, InvalidEdgesTyp
 
     auto cell = vtkSmartPointer<vtkIdList>::New();
 
-    vtkIdType i, indexA, indexB, nextA, nextB, numNeigs;
+    vtkIdType indexA, indexB, nextA, nextB, numNeigs;
 
     auto lineItr = vtk::TakeSmartPointer(lines->GetLines()->NewIterator());
 
@@ -369,11 +369,7 @@ void vtkPolyDataContactFilter::GetInvalidEdges (vtkPolyData *pd, InvalidEdgesTyp
 
         cellsA->IntersectWith(cellsB);
 
-        std::set<vtkIdType> cellIds;
-
-        for (i = 0; i < cellsA->GetNumberOfIds(); i++) {
-            cellIds.insert(cellsA->GetId(i));
-        }
+        std::set<vtkIdType> cellIds(cellsA->begin(), cellsA->end());
 
         numNeigs = 0;