diff --git a/src/plugins/qmldesigner/components/materialeditor/materialeditorview.cpp b/src/plugins/qmldesigner/components/materialeditor/materialeditorview.cpp
index 7ab7cc090c5..8b3d6932741 100644
--- a/src/plugins/qmldesigner/components/materialeditor/materialeditorview.cpp
+++ b/src/plugins/qmldesigner/components/materialeditor/materialeditorview.cpp
@@ -718,6 +718,9 @@ void MaterialEditorView::importsChanged(const QList<Import> &addedImports, const
     m_hasQuick3DImport = model()->hasImport("QtQuick3D");
     m_qmlBackEnd->contextObject()->setHasQuick3DImport(m_hasQuick3DImport);
 
+    if (m_hasQuick3DImport)
+        m_ensureMatLibTimer.start(500);
+
     resetView();
 }