diff --git a/src/protocols/PhysicalLayer/PhysicalLayer.h b/src/protocols/PhysicalLayer/PhysicalLayer.h
index 8cb32a0d..273bd61b 100644
--- a/src/protocols/PhysicalLayer/PhysicalLayer.h
+++ b/src/protocols/PhysicalLayer/PhysicalLayer.h
@@ -229,6 +229,11 @@ class PhysicalLayer {
     */
     PhysicalLayer();
 
+    /*!
+      \brief Default destructor.
+    */
+    virtual ~PhysicalLayer() = default;
+
     // basic methods
 
     #if defined(RADIOLIB_BUILD_ARDUINO)