diff --git a/Linphone/core/chat/ChatProxy.cpp b/Linphone/core/chat/ChatProxy.cpp
index b5077815e..9b34f3e11 100644
--- a/Linphone/core/chat/ChatProxy.cpp
+++ b/Linphone/core/chat/ChatProxy.cpp
@@ -83,6 +83,6 @@ bool ChatProxy::SortFilterList::lessThan(const QModelIndex &sourceLeft, const QM
 	if (!mFilterText.isEmpty()) return false;
 	auto l = getItemAtSource<ChatList, ChatCore>(sourceLeft.row());
 	auto r = getItemAtSource<ChatList, ChatCore>(sourceRight.row());
-	if (l && r) return l->getLastUpdatedTime() >= r->getLastUpdatedTime();
+	if (l && r) return l->getLastUpdatedTime() > r->getLastUpdatedTime();
 	return false;
 }
diff --git a/Linphone/core/chat/message/EventLogProxy.cpp b/Linphone/core/chat/message/EventLogProxy.cpp
index f42d5335d..5fddfdf38 100644
--- a/Linphone/core/chat/message/EventLogProxy.cpp
+++ b/Linphone/core/chat/message/EventLogProxy.cpp
@@ -152,6 +152,6 @@ bool EventLogProxy::SortFilterList::filterAcceptsRow(int sourceRow, const QModel
 bool EventLogProxy::SortFilterList::lessThan(const QModelIndex &sourceLeft, const QModelIndex &sourceRight) const {
 	auto l = getItemAtSource<EventLogList, EventLogCore>(sourceLeft.row());
 	auto r = getItemAtSource<EventLogList, EventLogCore>(sourceRight.row());
-	if (l && r) return l->getTimestamp() <= r->getTimestamp();
+	if (l && r) return l->getTimestamp() < r->getTimestamp();
 	return true;
 }
diff --git a/Linphone/core/conference/ConferenceInfoProxy.cpp b/Linphone/core/conference/ConferenceInfoProxy.cpp
index d1799b3ad..82ed0247b 100644
--- a/Linphone/core/conference/ConferenceInfoProxy.cpp
+++ b/Linphone/core/conference/ConferenceInfoProxy.cpp
@@ -150,7 +150,7 @@ bool ConferenceInfoProxy::SortFilterList::lessThan(const QModelIndex &sourceLeft
 	auto nowDate = QDate::currentDate();
 	if (!l || !r) { // sort on date
 		auto rdate = r ? r->getDateTimeUtc().date() : QDate::currentDate();
-		return !l ? nowDate <= r->getDateTimeUtc().date() : l->getDateTimeUtc().date() < nowDate;
+		return !l ? nowDate < r->getDateTimeUtc().date() : l->getDateTimeUtc().date() < nowDate;
 	} else {
 		return l->getDateTimeUtc() < r->getDateTimeUtc();
 	}