diff --git a/hoot-core/src/main/cpp/hoot/core/ops/BuildingPartMergeOp.cpp b/hoot-core/src/main/cpp/hoot/core/ops/BuildingPartMergeOp.cpp
index 0233081..a97feba 100644
--- a/hoot-core/src/main/cpp/hoot/core/ops/BuildingPartMergeOp.cpp
+++ b/hoot-core/src/main/cpp/hoot/core/ops/BuildingPartMergeOp.cpp
@@ -22,7 +22,7 @@
* This will properly maintain the copyright information. DigitalGlobe
* copyrights will be updated automatically.
*
- * @copyright Copyright (C) 2015, 2016, 2017, 2018, 2019 DigitalGlobe (http://www.digitalglobe.com/)
+ * @copyright Copyright (C) 2015, 2016, 2017, 2018, 2019, 2020 DigitalGlobe (http://www.digitalglobe.com/)
*/
#include "BuildingPartMergeOp.h"
@@ -357,9 +357,9 @@ std::set<long> BuildingPartMergeOp::_calculateNeighbors(const ConstWayPtr& way,
bool BuildingPartMergeOp::_compareTags(Tags t1, Tags t2)
{
// remove all the building tags that are building:part=yes specific.
- const std::set<QString> buildingPartTagNames =
+ const QSet<QString> buildingPartTagNames =
BuildingRelationMemberTagMerger::getBuildingPartTagNames();
- for (std::set<QString>::const_iterator it = buildingPartTagNames.begin();
+ for (QSet<QString>::const_iterator it = buildingPartTagNames.begin();
it != buildingPartTagNames.end(); ++it)
{
t1.remove(*it);