v0.2.55..v0.2.56 changeset NameExtractor.h

diff --git a/hoot-core/src/main/cpp/hoot/core/algorithms/extractors/NameExtractor.h b/hoot-core/src/main/cpp/hoot/core/algorithms/extractors/NameExtractor.h
index 9d6c1f4..ecdc219 100644
--- a/hoot-core/src/main/cpp/hoot/core/algorithms/extractors/NameExtractor.h
+++ b/hoot-core/src/main/cpp/hoot/core/algorithms/extractors/NameExtractor.h
@@ -42,6 +42,7 @@ public:
 
   NameExtractor();
   NameExtractor(StringDistancePtr d);
+  virtual ~NameExtractor() = default;
 
   static std::string className() { return "hoot::NameExtractor"; }