diff --git a/src/Cxx/IO/TransientHDFReader.cxx b/src/Cxx/IO/TransientHDFReader.cxx
index 008fddc2ce96b9ed6d9669bbd7be1abdc2f26524..bd5328eb7015fb114ed0700c699d8865780f4fc9 100644
--- a/src/Cxx/IO/TransientHDFReader.cxx
+++ b/src/Cxx/IO/TransientHDFReader.cxx
@@ -33,14 +33,14 @@ int main(int ac, char** av)
 
   vtkNew<vtkNamedColors> colors;
 
-  // Read the dataset
+  // Read the dataset.
   vtkNew<vtkHDFReader> reader;
   reader->SetFileName(av[1]);
   reader->Update();
   std::cout << "number of steps: " << reader->GetNumberOfSteps() << endl;
   auto polydata = vtkPolyData::SafeDownCast(reader->GetOutput());
 
-  // Render the dataset
+  // Render the dataset.
   vtkNew<vtkPolyDataMapper> mapper;
   mapper->SetInputData(polydata);
   mapper->SetLookupTable(GetCTF());
@@ -58,14 +58,15 @@ int main(int ac, char** av)
   vtkNew<vtkRenderWindow> renWin;
   renWin->AddRenderer(renderer);
   renWin->SetWindowName("TransientHDFReader");
+  renWin->SetSize(1024, 512);
   renWin->Render();
 
-  // Add the animation callback
+  // Add the animation callback.
   vtkNew<vtkCallbackCommand> command;
   command->SetCallback(&Animate);
   command->SetClientData(reader);
 
-  // Add the interactor
+  // Add the interactor.
   vtkNew<vtkRenderWindowInteractor> iren;
   iren->SetRenderWindow(renWin);
   iren->AddObserver(vtkCommand::TimerEvent, command);
diff --git a/src/Testing/Baseline/Cxx/IO/TestTransientHDFReader.png b/src/Testing/Baseline/Cxx/IO/TestTransientHDFReader.png
index c2c3f6fced1e469f9018af1635188e53b502dbf1..6054c2757dcfe29bfe742561297b99154a381941 100644
--- a/src/Testing/Baseline/Cxx/IO/TestTransientHDFReader.png
+++ b/src/Testing/Baseline/Cxx/IO/TestTransientHDFReader.png
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:89fe69f18c3ef305aac25c6dccc1663753071b71ee488f12121ac16acaaa4472
-size 54961
+oid sha256:d1448e1f0a15e01d7371731bcf1b0d72716af59ac62ff4a90626c9f4892956cb
+size 53670