diff --git a/src/iosource/af_packet/src/AF_Packet.h b/src/iosource/af_packet/src/AF_Packet.h
index 1c176faf7d..b6e0e8a41d 100644
--- a/src/iosource/af_packet/src/AF_Packet.h
+++ b/src/iosource/af_packet/src/AF_Packet.h
@@ -39,19 +39,19 @@ public:
 	/**
 	 * Destructor.
 	 */
-	virtual ~AF_PacketSource();
+	~AF_PacketSource() override;
 
 	static PktSrc* InstantiateAF_Packet(const std::string& path, bool is_live);
 
 protected:
 	// PktSrc interface.
-	virtual void Open();
-	virtual void Close();
-	virtual bool ExtractNextPacket(zeek::Packet* pkt);
-	virtual void DoneWithPacket();
-	virtual bool PrecompileFilter(int index, const std::string& filter);
-	virtual bool SetFilter(int index);
-	virtual void Statistics(Stats* stats);
+	void Open() override;
+	void Close() override;
+	bool ExtractNextPacket(zeek::Packet* pkt) override;
+	void DoneWithPacket() override;
+	bool PrecompileFilter(int index, const std::string& filter) override;
+	bool SetFilter(int index) override;
+	void Statistics(Stats* stats) override;
 
 private:
 	Properties props;