diff --git a/src/chat/chat-message/chat-message-p.h b/src/chat/chat-message/chat-message-p.h
index b7c2d54b2..784fd062b 100644
--- a/src/chat/chat-message/chat-message-p.h
+++ b/src/chat/chat-message/chat-message-p.h
@@ -148,8 +148,6 @@ private:
 	ContentType cContentType;
 	std::string cText;
 
-	std::string createImdnXml(Imdn::Type imdnType, LinphoneReason reason);
-
 	// TODO: Remove my comment. VARIABLES OK.
 	// Do not expose.