diff --git a/hoot-core/src/main/cpp/hoot/core/scoring/DataSamples.h b/hoot-core/src/main/cpp/hoot/core/scoring/DataSamples.h
index 9126478..89883f7 100644
--- a/hoot-core/src/main/cpp/hoot/core/scoring/DataSamples.h
+++ b/hoot-core/src/main/cpp/hoot/core/scoring/DataSamples.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 DATASAMPLES_H
@@ -48,7 +48,8 @@ class DataSamples : public std::vector<Sample>
{
public:
- DataSamples();
+ DataSamples() = default;
+ virtual ~DataSamples() = default;
std::vector<std::string> getUniqueLabels() const;