diff --git a/coreapi/chat.c b/coreapi/chat.c
index 3a15ea552..1f1afbb1f 100644
--- a/coreapi/chat.c
+++ b/coreapi/chat.c
@@ -1347,6 +1347,7 @@ static void _linphone_chat_message_destroy(LinphoneChatMessage* msg) {
 		linphone_content_uninit(msg->file_transfer_information);
 		ms_free(msg->file_transfer_information);
 	}
+	ms_message("LinphoneChatMessage [%p] destroyed.",msg);
 }
 
 
diff --git a/tester/tester.c b/tester/tester.c
index 07ace6956..9b796da4c 100644
--- a/tester/tester.c
+++ b/tester/tester.c
@@ -252,6 +252,7 @@ void linphone_core_manager_stop(LinphoneCoreManager *mgr){
 }
 
 void linphone_core_manager_destroy(LinphoneCoreManager* mgr) {
+	if (mgr->stat.last_received_chat_message) linphone_chat_message_unref(mgr->stat.last_received_chat_message);
 	if (mgr->lc) linphone_core_destroy(mgr->lc);
 	if (mgr->identity) linphone_address_destroy(mgr->identity);
 	ms_free(mgr);