diff --git a/Tests/ReferenceData/MiniExamples/specular/SpecularSimulationWithRoughness.int b/Tests/ReferenceData/MiniExamples/specular/SpecularSimulationWithRoughness.int
index 0ab6551843b12800729764e01adf4d5448ebdae8..67287489758f79b0e1b858a2b2275fd7cb0f357c 100644
--- a/Tests/ReferenceData/MiniExamples/specular/SpecularSimulationWithRoughness.int
+++ b/Tests/ReferenceData/MiniExamples/specular/SpecularSimulationWithRoughness.int
@@ -4,5 +4,54 @@
 ListScan("alpha_i (rad)", [0.000698131700797732,0.00139626340159546,0.0020943951023932,0.00279252680319093,0.00349065850398866,0.00418879020478639,0.00488692190558412,0.00558505360638185,0.00628318530717959,0.00698131700797732,0.00767944870877505,0.00837758040957278,0.00907571211037051,0.00977384381116825,0.010471975511966,0.0111701072127637,0.0118682389135614,0.0125663706143592,0.0132645023151569,0.0139626340159546,0.0146607657167524,0.0153588974175501,0.0160570291183478,0.0167551608191456,0.0174532925199433,0.018151424220741,0.0188495559215388,0.0195476876223365,0.0202458193231342,0.020943951023932,0.0216420827247297,0.0223402144255274,0.0230383461263251,0.0237364778271229,0.0244346095279206,0.0251327412287183,0.0258308729295161,0.0265290046303138,0.0272271363311115,0.0279252680319093,0.028623399732707,0.0293215314335047,0.0300196631343025,0.0307177948351002,0.0314159265358979,0.0321140582366957,0.0328121899374934,0.0335103216382911,0.0342084533390889,0.0349065850398866,])
 
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