diff --git a/hoot-core/src/main/cpp/hoot/core/criterion/BuildingCriterion.h b/hoot-core/src/main/cpp/hoot/core/criterion/BuildingCriterion.h
index 73c046c..906195f 100644
--- a/hoot-core/src/main/cpp/hoot/core/criterion/BuildingCriterion.h
+++ b/hoot-core/src/main/cpp/hoot/core/criterion/BuildingCriterion.h
@@ -65,6 +65,8 @@ public:
virtual QString toString() const override
{ return QString::fromStdString(className()).remove("hoot::"); }
+ virtual bool supportsSpecificConflation() const { return true; }
+
private:
ConstOsmMapPtr _map;