diff --git a/Domains/ChemistryOpenGL2/Testing/Cxx/TestPDBBallAndStickTranslucent.cxx b/Domains/ChemistryOpenGL2/Testing/Cxx/TestPDBBallAndStickTranslucent.cxx
index 9f00c49b0b32955e4d92a7ea5e1151f53189f61f..aec7c53967e2cdece3319667ad94380cf0420ff1 100644
--- a/Domains/ChemistryOpenGL2/Testing/Cxx/TestPDBBallAndStickTranslucent.cxx
+++ b/Domains/ChemistryOpenGL2/Testing/Cxx/TestPDBBallAndStickTranslucent.cxx
@@ -42,7 +42,7 @@ int TestPDBBallAndStickTranslucent(int argc, char* argv[])
 
   vtkNew<vtkActor> actor;
   actor->SetMapper(molmapper);
-  actor->GetProperty()->SetOpacity(0.1);
+  actor->GetProperty()->SetOpacity(0.4);
 
   vtkNew<vtkRenderer> ren;
   vtkNew<vtkRenderWindow> win;