diff --git a/hoot-core/src/main/cpp/hoot/core/algorithms/extractors/CompactnessExtractor.h b/hoot-core/src/main/cpp/hoot/core/algorithms/extractors/CompactnessExtractor.h
index 8facff3..333deb3 100644
--- a/hoot-core/src/main/cpp/hoot/core/algorithms/extractors/CompactnessExtractor.h
+++ b/hoot-core/src/main/cpp/hoot/core/algorithms/extractors/CompactnessExtractor.h
@@ -23,7 +23,7 @@
* copyrights will be updated automatically.
*
* @copyright Copyright (C) 2005 VividSolutions (http://www.vividsolutions.com/)
- * @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 COMPACTNESSEXTRACTOR_H
#define COMPACTNESSEXTRACTOR_H
@@ -55,7 +55,8 @@ class CompactnessExtractor : public FeatureExtractorBase
{
public:
- CompactnessExtractor();
+ CompactnessExtractor() = default;
+ virtual ~CompactnessExtractor() = default;
static std::string className() { return "hoot::CompactnessExtractor"; }