diff --git a/hoot-core/src/main/cpp/hoot/core/algorithms/string/MinSumWordSetDistance.h b/hoot-core/src/main/cpp/hoot/core/algorithms/string/MinSumWordSetDistance.h
index 1e72ea6..3f329f0 100644
--- a/hoot-core/src/main/cpp/hoot/core/algorithms/string/MinSumWordSetDistance.h
+++ b/hoot-core/src/main/cpp/hoot/core/algorithms/string/MinSumWordSetDistance.h
@@ -22,7 +22,7 @@
* This will properly maintain the copyright information. DigitalGlobe
* copyrights will be updated automatically.
*
- * @copyright Copyright (C) 2015, 2017, 2018, 2019 DigitalGlobe (http://www.digitalglobe.com/)
+ * @copyright Copyright (C) 2015, 2017, 2018, 2019, 2020 DigitalGlobe (http://www.digitalglobe.com/)
*/
#ifndef MINSUMWORDSETDISTANCE_H
#define MINSUMWORDSETDISTANCE_H
@@ -45,9 +45,10 @@ public:
/**
* @param d Takes ownership of d.
*/
- MinSumWordSetDistance(StringDistance* d);
+ MinSumWordSetDistance(StringDistancePtr d);
- MinSumWordSetDistance();
+ MinSumWordSetDistance() = default;
+ virtual ~MinSumWordSetDistance() = default;
static std::string className() { return "hoot::MinSumWordSetDistance"; }