diff --git a/vtkm/filter/field_transform/testing/UnitTestCoordinateSystemTransform.cxx b/vtkm/filter/field_transform/testing/UnitTestCoordinateSystemTransform.cxx
index 65d24c8b8..5270aa94c 100644
--- a/vtkm/filter/field_transform/testing/UnitTestCoordinateSystemTransform.cxx
+++ b/vtkm/filter/field_transform/testing/UnitTestCoordinateSystemTransform.cxx
@@ -70,8 +70,8 @@ vtkm::cont::DataSet MakeTestDataSet(const CoordinateType& cType)
     std::vector<vtkm::FloatDefault> Phis = {
       eps, vtkm::TwoPif() / 4.0f, vtkm::TwoPif() / 3.0f, vtkm::TwoPif() / 2.0f, vtkm::TwoPif() - eps
     };
-    for (float& Theta : Thetas)
-      for (float& Phi : Phis)
+    for (auto& Theta : Thetas)
+      for (auto& Phi : Phis)
         coordinates.push_back(vtkm::make_Vec(R, Theta, Phi));
   }
 
diff --git a/vtkm/filter/field_transform/testing/UnitTestPointTransform.cxx b/vtkm/filter/field_transform/testing/UnitTestPointTransform.cxx
index 151afa25c..dbd71e1a6 100644
--- a/vtkm/filter/field_transform/testing/UnitTestPointTransform.cxx
+++ b/vtkm/filter/field_transform/testing/UnitTestPointTransform.cxx
@@ -187,7 +187,7 @@ void TestPointTransform()
   for (int i = 0; i < N; i++)
     axes.emplace_back(axisDist(randGenerator), axisDist(randGenerator), axisDist(randGenerator));
 
-  for (float& angle : angles)
+  for (auto& angle : angles)
     for (auto& axe : axes)
       TestPointTransformRotation(ds, angle, axe);
 }