diff --git a/resources/qml/Preferences/Materials/MaterialsSyncDialog.qml b/resources/qml/Preferences/Materials/MaterialsSyncDialog.qml
index d7d92e1d5e..038384eb0c 100644
--- a/resources/qml/Preferences/Materials/MaterialsSyncDialog.qml
+++ b/resources/qml/Preferences/Materials/MaterialsSyncDialog.qml
@@ -16,6 +16,7 @@ Window
     minimumHeight: UM.Theme.getSize("modal_window_minimum").height
     width: minimumWidth
     height: minimumHeight
+    modality: Qt.ApplicationModal
 
     SwipeView
     {