diff --git a/CHANGELOG.md b/CHANGELOG.md
index 78ed5473b..3018e6da3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,11 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## 5.3.2 - Undefined
+
+### Fixed
+- Avoid mosaic layout when screensharing is enabled.
+
 ## 5.3.1 - 2025-10-07
 
 ### Fixed
diff --git a/linphone-app/src/components/call/CallModel.cpp b/linphone-app/src/components/call/CallModel.cpp
index 6998f489c..b4da79592 100644
--- a/linphone-app/src/components/call/CallModel.cpp
+++ b/linphone-app/src/components/call/CallModel.cpp
@@ -1098,6 +1098,8 @@ void CallModel::updateConferenceVideoLayout(){
 	auto newLayout = LinphoneEnums::fromLinphone(callParams->getConferenceVideoLayout());
 	if( !callParams->videoEnabled())
 		newLayout = LinphoneEnums::ConferenceLayoutAudioOnly;
+	else if (getConferenceModel() && getConferenceModel()->isScreenSharingEnabled())
+		newLayout = LinphoneEnums::ConferenceLayoutActiveSpeaker;
 	if( mConferenceVideoLayout != newLayout && !getPausedByUser()){// Only update if not in pause.
 		if(mCall->getConference()){
 			if( callParams->getConferenceVideoLayout() == linphone::Conference::Layout::Grid)