diff --git a/Tests/Functional/Python/PyPersistence/CMakeLists.txt b/Tests/Functional/Python/PyPersistence/CMakeLists.txt
index 37ca7923b8b8148c55c726673bb0e92fed0b57ce..bfd6ede2e4878f9e72b9d306f28bd5e05708ec03 100644
--- a/Tests/Functional/Python/PyPersistence/CMakeLists.txt
+++ b/Tests/Functional/Python/PyPersistence/CMakeLists.txt
@@ -74,6 +74,7 @@ test_example("simulation/ex05_BeamAndDetector/BeamDivergence" 2e-10)
 test_example("simulation/ex05_BeamAndDetector/DetectorResolutionFunction" 2e-10)
 test_example("simulation/ex05_BeamAndDetector/OffSpecularSimulation" 2e-10)
 test_example("simulation/ex05_BeamAndDetector/SpecularSimulation" 2e-10)
+test_example("simulation/ex05_BeamAndDetector/ConstantBackground" 2e-10)
 
 test_example("simulation/ex06_Miscellaneous/CylindersInAverageLayer" 2e-10)
 test_example("simulation/ex06_Miscellaneous/HalfSpheresInAverageTopLayer" 2e-10)
diff --git a/Tests/ReferenceData/PyPersist/ConstantBackground.ref.int.gz b/Tests/ReferenceData/PyPersist/ConstantBackground.ref.int.gz
new file mode 100644
index 0000000000000000000000000000000000000000..3e8a4273d132ea72393e882fbcf7810566d8a4f5
Binary files /dev/null and b/Tests/ReferenceData/PyPersist/ConstantBackground.ref.int.gz differ