diff --git a/hoot-core/src/main/cpp/hoot/core/ops/HighwayImpliedDividedMarker.h b/hoot-core/src/main/cpp/hoot/core/ops/HighwayImpliedDividedMarker.h
index 7853099..f460f6d 100644
--- a/hoot-core/src/main/cpp/hoot/core/ops/HighwayImpliedDividedMarker.h
+++ b/hoot-core/src/main/cpp/hoot/core/ops/HighwayImpliedDividedMarker.h
@@ -57,8 +57,9 @@ public:
static std::string className() { return "hoot::HighwayImpliedDividedMarker"; }
- HighwayImpliedDividedMarker();
- HighwayImpliedDividedMarker(const std::shared_ptr<const OsmMap>& map);
+ HighwayImpliedDividedMarker() = default;
+ HighwayImpliedDividedMarker(const std::shared_ptr<const OsmMap>& map) : _inputMap(map) { }
+ virtual ~HighwayImpliedDividedMarker() = default;
void apply(std::shared_ptr<OsmMap>& map);