diff --git a/sdrbase/maincore.cpp b/sdrbase/maincore.cpp
index ac5c74066..dcb11060c 100644
--- a/sdrbase/maincore.cpp
+++ b/sdrbase/maincore.cpp
@@ -209,6 +209,7 @@ void MainCore::removeLastFeatureSet()
         FeatureSet *featureSet = m_featureSets.back();
         m_featureSetsMap.remove(featureSet);
         m_featureSets.pop_back();
+        delete featureSet;
     }
 }