diff --git a/widget/chatareawidget.cpp b/widget/chatareawidget.cpp
index a6762c673..44d2f6505 100644
--- a/widget/chatareawidget.cpp
+++ b/widget/chatareawidget.cpp
@@ -34,6 +34,7 @@ ChatAreaWidget::ChatAreaWidget(QWidget *parent) :
     setAcceptRichText(false);
 
     connect(this, &ChatAreaWidget::anchorClicked, this, &ChatAreaWidget::onAnchorClicked);
+    connect(verticalScrollBar(), SIGNAL(rangeChanged(int,int)), this, SLOT(onSliderRangeChanged()));
 }
 
 ChatAreaWidget::~ChatAreaWidget()
@@ -84,6 +85,8 @@ void ChatAreaWidget::insertMessage(ChatAction *msgAction)
     if (msgAction == nullptr)
         return;
 
+    checkSlider();
+
     moveCursor(QTextCursor::End);
     moveCursor(QTextCursor::PreviousCell);
     QTextCursor cur = textCursor();
@@ -94,3 +97,16 @@ void ChatAreaWidget::insertMessage(ChatAction *msgAction)
 
     messages.append(msgAction);
 }
+
+void ChatAreaWidget::onSliderRangeChanged()
+{
+    QScrollBar* scroll = verticalScrollBar();
+    if (lockSliderToBottom)
+        scroll->setValue(scroll->maximum());
+}
+
+void ChatAreaWidget::checkSlider()
+{
+    QScrollBar* scroll = verticalScrollBar();
+    lockSliderToBottom = scroll && scroll->value() == scroll->maximum();
+}
diff --git a/widget/chatareawidget.h b/widget/chatareawidget.h
index e42f576f1..ebc76fa06 100644
--- a/widget/chatareawidget.h
+++ b/widget/chatareawidget.h
@@ -36,10 +36,13 @@ signals:
 protected:
     void mouseReleaseEvent(QMouseEvent * event);
 
-public slots:
+private slots:
     void onAnchorClicked(const QUrl& url);
+    void onSliderRangeChanged();
 
 private:
+    void checkSlider();
+
     QList<ChatAction*> messages;
     bool lockSliderToBottom;
     int sliderPosition;