diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4d21b44ff..4eca27f83 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -19,9 +19,14 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Fixed
 - Update SDK to 5.2.29
 
+## 5.0.13 - undefined
+
+### Fixed
+- Crash on chat rooms with default account.
+
 ## 5.0.12 - 2023-03-01
 
-## Fixed
+### Fixed
 - Some case of unwanted settings folders creation.
 - Replace black thumbnails that contains transparency by white color.
 - Unusable Contact sheet.
diff --git a/linphone-app/src/components/conferenceInfo/ConferenceInfoModel.cpp b/linphone-app/src/components/conferenceInfo/ConferenceInfoModel.cpp
index 1e9f61142..31bd46a09 100644
--- a/linphone-app/src/components/conferenceInfo/ConferenceInfoModel.cpp
+++ b/linphone-app/src/components/conferenceInfo/ConferenceInfoModel.cpp
@@ -87,11 +87,14 @@ ConferenceInfoModel::ConferenceInfoModel (QObject * parent) : QObject(parent){
 	mConferenceInfo->setDateTime(0);
 	mConferenceInfo->setDuration(0);
 	mIsScheduled = false;
-	auto accountAddress = CoreManager::getInstance()->getCore()->getDefaultAccount()->getContactAddress();
-	if(accountAddress){
-		auto cleanedClonedAddress = accountAddress->clone();
-		cleanedClonedAddress->clean();
-		mConferenceInfo->setOrganizer(cleanedClonedAddress);
+	auto defaultAccount = CoreManager::getInstance()->getCore()->getDefaultAccount();
+	if(defaultAccount){
+		auto accountAddress = defaultAccount->getContactAddress();
+		if(accountAddress){
+			auto cleanedClonedAddress = accountAddress->clone();
+			cleanedClonedAddress->clean();
+			mConferenceInfo->setOrganizer(cleanedClonedAddress);
+		}
 	}
 	connect(this, &ConferenceInfoModel::conferenceInfoChanged, this, &ConferenceInfoModel::timeZoneModelChanged);
 	connect(this, &ConferenceInfoModel::conferenceInfoChanged, this, &ConferenceInfoModel::dateTimeChanged);
@@ -324,11 +327,14 @@ void ConferenceInfoModel::resetConferenceInfo() {
 	mConferenceInfo->setDateTime(0);
 	mConferenceInfo->setDuration(0);
 	mIsScheduled = false;
-	auto accountAddress = CoreManager::getInstance()->getCore()->getDefaultAccount()->getContactAddress();
-	if(accountAddress){
-		auto cleanedClonedAddress = accountAddress->clone();
-		cleanedClonedAddress->clean();
-		mConferenceInfo->setOrganizer(cleanedClonedAddress);
+	auto defaultAccount = CoreManager::getInstance()->getCore()->getDefaultAccount();
+	if(defaultAccount){
+		auto accountAddress = defaultAccount->getContactAddress();
+		if(accountAddress){
+			auto cleanedClonedAddress = accountAddress->clone();
+			cleanedClonedAddress->clean();
+			mConferenceInfo->setOrganizer(cleanedClonedAddress);
+		}
 	}
 }