diff --git a/share/qtcreator/qmldesigner/itemLibraryQmlSources/LibraryHeader.qml b/share/qtcreator/qmldesigner/itemLibraryQmlSources/LibraryHeader.qml
index 164a1034221..52570b230c0 100644
--- a/share/qtcreator/qmldesigner/itemLibraryQmlSources/LibraryHeader.qml
+++ b/share/qtcreator/qmldesigner/itemLibraryQmlSources/LibraryHeader.qml
@@ -32,8 +32,6 @@ import StudioTheme 1.0 as StudioTheme
 
 Item {
     id: root
-    width: 200
-    height: 75
 
     function setTab(index)
     {
diff --git a/src/plugins/qmldesigner/components/itemlibrary/itemlibrarywidget.cpp b/src/plugins/qmldesigner/components/itemlibrary/itemlibrarywidget.cpp
index f220822bc13..27e9fa3d511 100644
--- a/src/plugins/qmldesigner/components/itemlibrary/itemlibrarywidget.cpp
+++ b/src/plugins/qmldesigner/components/itemlibrary/itemlibrarywidget.cpp
@@ -148,6 +148,8 @@ ItemLibraryWidget::ItemLibraryWidget(AsynchronousImageCache &imageCache,
 
     // create header widget
     m_headerWidget->setResizeMode(QQuickWidget::SizeRootObjectToView);
+    m_headerWidget->setMinimumHeight(75);
+    m_headerWidget->setMinimumWidth(100);
     Theme::setupTheme(m_headerWidget->engine());
     m_headerWidget->engine()->addImportPath(propertyEditorResourcesPath() + "/imports");
     m_headerWidget->setClearColor(Theme::getColor(Theme::Color::DSpanelBackground));