diff --git a/plugins/XmlMaterialProfile/XmlMaterialProfile.py b/plugins/XmlMaterialProfile/XmlMaterialProfile.py
index b996be602f..0fd3ded228 100644
--- a/plugins/XmlMaterialProfile/XmlMaterialProfile.py
+++ b/plugins/XmlMaterialProfile/XmlMaterialProfile.py
@@ -24,6 +24,13 @@ class XmlMaterialProfile(UM.Settings.InstanceContainer):
         result.setMetaDataEntry("GUID", str(uuid.uuid4()))
         return result
 
+    ##  Overridden from InstanceContainer
+    def setReadOnly(self, read_only):
+        super().setReadOnly(read_only)
+
+        for container in UM.Settings.ContainerRegistry.getInstance().findInstanceContainers(GUID = self.getMetaDataEntry("GUID")):
+            container._read_only = read_only
+
     ##  Overridden from InstanceContainer
     def setMetaDataEntry(self, key, value):
         super().setMetaDataEntry(key, value)