diff --git a/hoot-core/src/main/cpp/hoot/core/algorithms/extractors/AngleHistogramExtractor.cpp b/hoot-core/src/main/cpp/hoot/core/algorithms/extractors/AngleHistogramExtractor.cpp
index 1e956e2..ec7fd51 100644
--- a/hoot-core/src/main/cpp/hoot/core/algorithms/extractors/AngleHistogramExtractor.cpp
+++ b/hoot-core/src/main/cpp/hoot/core/algorithms/extractors/AngleHistogramExtractor.cpp
@@ -23,7 +23,7 @@
* copyrights will be updated automatically.
*
* @copyright Copyright (C) 2005 VividSolutions (http://www.vividsolutions.com/)
- * @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 "AngleHistogramExtractor.h"
@@ -34,7 +34,8 @@
#include <hoot/core/util/Factory.h>
#include <hoot/core/algorithms/extractors/Histogram.h>
#include <hoot/core/elements/ConstElementVisitor.h>
-#include <hoot/core/util/GeometryConverter.h>
+#include <hoot/core/elements/Way.h>
+#include <hoot/core/elements/OsmMap.h>
using namespace geos::geom;
using namespace std;