diff --git a/tests/unit/unittest/data/highlightingmarks.cpp b/tests/unit/unittest/data/highlightingmarks.cpp
index d37f3e297af..3d3d5c51890 100644
--- a/tests/unit/unittest/data/highlightingmarks.cpp
+++ b/tests/unit/unittest/data/highlightingmarks.cpp
@@ -525,3 +525,17 @@ void f30()
     NonConstReferenceArgument(instance.member);
 }
 
+struct NonConstReferenceArgumentConstructor
+{
+    NonConstReferenceArgumentConstructor() = default;
+    NonConstReferenceArgumentConstructor(NonConstReferenceArgumentConstructor &other);
+
+    void NonConstReferenceArgumentMember(NonConstReferenceArgumentConstructor &other);
+};
+
+void f31()
+{
+    NonConstReferenceArgumentConstructor instance;
+
+    NonConstReferenceArgumentConstructor copy(instance);
+}
diff --git a/tests/unit/unittest/highlightingmarks-test.cpp b/tests/unit/unittest/highlightingmarks-test.cpp
index 59c86305d48..f007c13e679 100644
--- a/tests/unit/unittest/highlightingmarks-test.cpp
+++ b/tests/unit/unittest/highlightingmarks-test.cpp
@@ -1059,6 +1059,16 @@ TEST_F(HighlightingMarks, NonConstPointerArgumentAsMemberOfClass)
                 HasTwoTypes(HighlightingType::Field, HighlightingType::OutputArgument));
 }
 
+TEST_F(HighlightingMarks, DISABLED_NonConstReferenceArgumentConstructor)
+{
+    const auto infos = translationUnit.highlightingMarksInRange(sourceRange(540, 57));
+
+    infos[2];
+
+    ASSERT_THAT(infos[3],
+                HasTwoTypes(HighlightingType::LocalVariable, HighlightingType::OutputArgument));
+}
+
 TEST_F(HighlightingMarks, DISABLED_EnumerationTypeDef)
 {
     const auto infos = translationUnit.highlightingMarksInRange(sourceRange(424, 41));