diff --git a/src/Gui/Tree.cpp b/src/Gui/Tree.cpp
index 2558afa57c..4a65c59421 100644
--- a/src/Gui/Tree.cpp
+++ b/src/Gui/Tree.cpp
@@ -748,6 +748,7 @@ TreeWidget::TreeWidget(const char* name, QWidget* parent)
     setColumnHidden(1, TreeParams::getHideColumn());
     setColumnHidden(2, TreeParams::getHideInternalNames());
     header()->setVisible(!TreeParams::getHideColumn() || !TreeParams::getHideInternalNames());
+    TreeParams::onFontSizeChanged();
 }
 
 TreeWidget::~TreeWidget()