diff --git a/hoot-core/src/main/cpp/hoot/core/algorithms/aggregator/MeanAggregator.h b/hoot-core/src/main/cpp/hoot/core/algorithms/aggregator/MeanAggregator.h
index a5aebf3..bbe7873 100644
--- a/hoot-core/src/main/cpp/hoot/core/algorithms/aggregator/MeanAggregator.h
+++ b/hoot-core/src/main/cpp/hoot/core/algorithms/aggregator/MeanAggregator.h
@@ -38,7 +38,8 @@ public:
static std::string className() { return "hoot::MeanAggregator"; }
- MeanAggregator();
+ MeanAggregator() = default;
+ virtual ~MeanAggregator() = default;
virtual double aggregate(std::vector<double>& d) const override;