diff --git a/hoot-core/src/main/cpp/hoot/core/scoring/MatchScoringMapPreparer.cpp b/hoot-core/src/main/cpp/hoot/core/scoring/MatchScoringMapPreparer.cpp
index 832d1ac..5386f07 100644
--- a/hoot-core/src/main/cpp/hoot/core/scoring/MatchScoringMapPreparer.cpp
+++ b/hoot-core/src/main/cpp/hoot/core/scoring/MatchScoringMapPreparer.cpp
@@ -44,6 +44,9 @@ class ConvertUuidToRefVisitor : public ElementOsmMapVisitor
{
public:
+ ConvertUuidToRefVisitor() = default;
+ virtual ~ConvertUuidToRefVisitor() = default;
+
virtual void visit(const std::shared_ptr<Element>& e)
{
if (!e->getTags().contains(MetadataTags::Ref1()) &&