diff --git a/src/iconsidepane.cpp b/src/iconsidepane.cpp
--- a/src/iconsidepane.cpp
+++ b/src/iconsidepane.cpp
@@ -230,8 +230,13 @@
         QStyleOptionViewItem optionCopy(*static_cast<const QStyleOptionViewItem *>(&option));
         optionCopy.decorationPosition = QStyleOptionViewItem::Top;
 
+#if QT_VERSION >= QT_VERSION_CHECK(5,9,0)
+        const int height = QFontMetrics(optionCopy.font).height();
+#else
+        const int height = 0;
+#endif
         optionCopy.decorationSize =
-            mNavigator->showIcons() ? QSize(mNavigator->iconSize(), mNavigator->iconSize()) : QSize();
+            mNavigator->showIcons() ? QSize(mNavigator->iconSize(), mNavigator->iconSize() + height) : QSize();
         optionCopy.textElideMode = Qt::ElideNone;
         return QStyledItemDelegate::sizeHint(optionCopy, index);
     }