diff --git a/Tests/Unit/GUI/TestDetectorItems.cpp b/Tests/Unit/GUI/TestDetectorItems.cpp
index 8452aaa6d9e95914629abe54e3969e88a606b557..351469e5bbfb21db07ddc8aa3893fd24be5081c7 100644
--- a/Tests/Unit/GUI/TestDetectorItems.cpp
+++ b/Tests/Unit/GUI/TestDetectorItems.cpp
@@ -11,24 +11,6 @@
 #include "GUI/Support/Type/Unit.h"
 #include "Tests/GTestWrapper/google_test.h"
 
-TEST(TestDetectorItems, resolutionFunction)
-{
-    InstrumentModel model;
-    auto* instrument = model.addInstrumentItem<GISASInstrumentItem>();
-
-    DetectorItem* detectorItem = instrument->detectorItem();
-
-    detectorItem->setResolutionFunctionType<ResolutionFunction2DGaussianItem>();
-
-    auto detector = detectorItem->createDetector();
-    const auto* convol =
-        dynamic_cast<const ConvolutionDetectorResolution*>(detector->detectorResolution());
-    const auto* gaussian =
-        dynamic_cast<const ResolutionFunction2DGaussian*>(convol->getResolutionFunction2D());
-
-    EXPECT_EQ(Units::rad2deg(gaussian->sigmaX()), 0.02);
-}
-
 TEST(TestDetectorItems, resolutionFunctionUnit)
 {
     const auto asString = [](const std::variant<QString, Unit>& unit) {