diff --git a/src/chat/chat-message/chat-message-p.h b/src/chat/chat-message/chat-message-p.h
index 730270265..fb3a15d0b 100644
--- a/src/chat/chat-message/chat-message-p.h
+++ b/src/chat/chat-message/chat-message-p.h
@@ -138,6 +138,9 @@ public:
 
 	LinphoneContent *getFileTransferInformation () const;
 	void setFileTransferInformation (const LinphoneContent *content);
+	
+	void addContent (Content &content);
+	void removeContent (const Content &content);
 
 	bool downloadFile ();
 
diff --git a/src/chat/chat-message/chat-message.cpp b/src/chat/chat-message/chat-message.cpp
index dd6fa43f9..e5d1a8db6 100644
--- a/src/chat/chat-message/chat-message.cpp
+++ b/src/chat/chat-message/chat-message.cpp
@@ -371,6 +371,14 @@ bool ChatMessagePrivate::downloadFile () {
 	return false;
 }
 
+void ChatMessagePrivate::addContent (Content &content) {
+	getContents().push_back(&content);
+}
+
+void ChatMessagePrivate::removeContent (const Content &content) {
+	getContents().remove(&const_cast<Content &>(content));
+}
+
 void ChatMessagePrivate::loadFileTransferUrlFromBodyToContent() {
 	L_Q();
 	int errorCode = 0;
@@ -718,7 +726,7 @@ void ChatMessagePrivate::send () {
 		if (content->getContentType() == ContentType::FileTransfer) {
 			FileTransferContent *fileTransferContent = (FileTransferContent *)content;
 			it = contents.erase(it);
-			q->addContent(*fileTransferContent->getFileContent());
+			addContent(*fileTransferContent->getFileContent());
 			delete fileTransferContent;
 		} else {
 			it++;
@@ -962,13 +970,13 @@ const list<Content *> &ChatMessage::getContents () const {
 void ChatMessage::addContent (Content &content) {
 	L_D();
 	if (!d->isReadOnly)
-		d->getContents().push_back(&content);
+		d->addContent(content);
 }
 
 void ChatMessage::removeContent (const Content &content) {
 	L_D();
 	if (!d->isReadOnly)
-		d->getContents().remove(&const_cast<Content &>(content));
+		d->removeContent(content);
 }
 
 const Content &ChatMessage::getInternalContent () const {
diff --git a/src/chat/modifier/file-transfer-chat-message-modifier.cpp b/src/chat/modifier/file-transfer-chat-message-modifier.cpp
index 41ffa66c8..f0293d67a 100644
--- a/src/chat/modifier/file-transfer-chat-message-modifier.cpp
+++ b/src/chat/modifier/file-transfer-chat-message-modifier.cpp
@@ -750,12 +750,12 @@ void FileTransferChatMessageModifier::onRecvEnd (belle_sip_user_body_handler_t *
 	if (retval <= 0 && message->getState() != ChatMessage::State::FileTransferError) {
 		// Remove the FileTransferContent from the message and store the FileContent
 		FileContent *fileContent = currentFileContentToTransfer;
-		message->addContent(*fileContent);
+		message->getPrivate()->addContent(*fileContent);
 		for (Content *content : message->getContents()) {
 			if (content->getContentType() == ContentType::FileTransfer) {
 				FileTransferContent *fileTransferContent = (FileTransferContent*)content;
 				if (fileTransferContent->getFileContent() == fileContent) {
-					message->removeContent(*content);
+					message->getPrivate()->removeContent(*content);
 					delete fileTransferContent;
 					break;
 				}