diff --git a/src/call/local-conference-call-p.h b/src/call/local-conference-call-p.h
index b352fa0b0..89e4a1971 100644
--- a/src/call/local-conference-call-p.h
+++ b/src/call/local-conference-call-p.h
@@ -29,8 +29,6 @@ LINPHONE_BEGIN_NAMESPACE
 
 class LocalConferenceCallPrivate : public CallPrivate {
 public:
-	LocalConferenceCallPrivate () = default;
-
 	std::shared_ptr<CallSession> getActiveSession () const override;
 
 private:
diff --git a/src/call/remote-conference-call-p.h b/src/call/remote-conference-call-p.h
index b627e2742..8f9cda90b 100644
--- a/src/call/remote-conference-call-p.h
+++ b/src/call/remote-conference-call-p.h
@@ -29,8 +29,6 @@ LINPHONE_BEGIN_NAMESPACE
 
 class RemoteConferenceCallPrivate : public CallPrivate {
 public:
-	RemoteConferenceCallPrivate () = default;
-
 	std::shared_ptr<CallSession> getActiveSession () const override;
 
 private:
diff --git a/src/chat/chat-message/chat-message-p.h b/src/chat/chat-message/chat-message-p.h
index fb3a15d0b..745815859 100644
--- a/src/chat/chat-message/chat-message-p.h
+++ b/src/chat/chat-message/chat-message-p.h
@@ -54,8 +54,6 @@ public:
 		Started = 1 << 5,
 	};
 
-	ChatMessagePrivate () = default;
-
 	void setApplyModifiers (bool value) { applyModifiers = value; }
 
 	void setDirection (ChatMessage::Direction dir);
@@ -138,7 +136,7 @@ public:
 
 	LinphoneContent *getFileTransferInformation () const;
 	void setFileTransferInformation (const LinphoneContent *content);
-	
+
 	void addContent (Content &content);
 	void removeContent (const Content &content);
 
diff --git a/src/chat/chat-room/basic-chat-room-p.h b/src/chat/chat-room/basic-chat-room-p.h
index 661a413a5..c281f940d 100644
--- a/src/chat/chat-room/basic-chat-room-p.h
+++ b/src/chat/chat-room/basic-chat-room-p.h
@@ -28,9 +28,6 @@
 LINPHONE_BEGIN_NAMESPACE
 
 class BasicChatRoomPrivate : public ChatRoomPrivate {
-public:
-	BasicChatRoomPrivate () = default;
-
 private:
 	std::string subject;
 	std::list<std::shared_ptr<Participant>> participants;
diff --git a/src/chat/chat-room/client-group-chat-room-p.h b/src/chat/chat-room/client-group-chat-room-p.h
index f75a5abac..cb62f6800 100644
--- a/src/chat/chat-room/client-group-chat-room-p.h
+++ b/src/chat/chat-room/client-group-chat-room-p.h
@@ -30,8 +30,6 @@ LINPHONE_BEGIN_NAMESPACE
 
 class ClientGroupChatRoomPrivate : public ChatRoomPrivate {
 public:
-	ClientGroupChatRoomPrivate () = default;
-
 	std::list<IdentityAddress> cleanAddressesList (const std::list<IdentityAddress> &addresses) const;
 	std::shared_ptr<CallSession> createSession ();
 	void notifyReceived (const std::string &body);
diff --git a/src/chat/chat-room/real-time-text-chat-room-p.h b/src/chat/chat-room/real-time-text-chat-room-p.h
index ae9af9de3..26b89d53b 100644
--- a/src/chat/chat-room/real-time-text-chat-room-p.h
+++ b/src/chat/chat-room/real-time-text-chat-room-p.h
@@ -34,8 +34,6 @@ public:
 		bool hasBeenRead;
 	};
 
-	RealTimeTextChatRoomPrivate () = default;
-
 	void realtimeTextReceived (uint32_t character, const std::shared_ptr<Call> &call);
 	void sendChatMessage (const std::shared_ptr<ChatMessage> &chatMessage) override;
 	void setCall (const std::shared_ptr<Call> &value) { call = value; }
diff --git a/src/conference/conference-p.h b/src/conference/conference-p.h
index 0a5441a03..c2f21013c 100644
--- a/src/conference/conference-p.h
+++ b/src/conference/conference-p.h
@@ -32,6 +32,8 @@ class Participant;
 
 class ConferencePrivate {
 public:
+	virtual ~ConferencePrivate () = default;
+
 	IdentityAddress conferenceAddress;
 	std::list<std::shared_ptr<Participant>> participants;
 	std::string subject;
diff --git a/src/conference/params/call-session-params-p.h b/src/conference/params/call-session-params-p.h
index 77b701291..74a7c0072 100644
--- a/src/conference/params/call-session-params-p.h
+++ b/src/conference/params/call-session-params-p.h
@@ -34,8 +34,6 @@ class CallSession;
 
 class CallSessionParamsPrivate : public ClonableObjectPrivate {
 public:
-	CallSessionParamsPrivate () = default;
-
 	void clone (const CallSessionParamsPrivate *src);
 
 	bool getInConference () const { return inConference; }
diff --git a/src/conference/session/media-session-p.h b/src/conference/session/media-session-p.h
index a238078c1..6ee6ac50a 100644
--- a/src/conference/session/media-session-p.h
+++ b/src/conference/session/media-session-p.h
@@ -20,8 +20,6 @@
 #ifndef _L_MEDIA_SESSION_P_H_
 #define _L_MEDIA_SESSION_P_H_
 
-#include <utility>
-
 #include "call-session-p.h"
 
 #include "media-session.h"
@@ -36,9 +34,6 @@
 LINPHONE_BEGIN_NAMESPACE
 
 class MediaSessionPrivate : public CallSessionPrivate {
-public:
-	MediaSessionPrivate () = default;
-
 public:
 	static int resumeAfterFailedTransfer (void *userData, unsigned int);
 	static bool_t startPendingRefer (void *userData);