diff --git a/src/widgets/helper/channelview.cpp b/src/widgets/helper/channelview.cpp
index d01b3fd75..b65660497 100644
--- a/src/widgets/helper/channelview.cpp
+++ b/src/widgets/helper/channelview.cpp
@@ -805,6 +805,7 @@ void ChannelView::mouseMoveEvent(QMouseEvent *event)
     } else {
         tooltipWidget->moveTo(this, event->globalPos());
         tooltipWidget->setText(tooltip);
+        tooltipWidget->adjustSize();
         tooltipWidget->show();
         tooltipWidget->raise();
     }