diff --git a/views/machine_product_training_views.xml b/views/machine_product_training_views.xml
index 53a9d60..51ea0f1 100644
--- a/views/machine_product_training_views.xml
+++ b/views/machine_product_training_views.xml
@@ -11,14 +11,14 @@
     </field>
   </record>
 
-  <!-- Tree View: Einweisungsprodukte -->
+  <!-- Tree View: Produkte für Einweisungen und Kurse -->
   <record id="view_machine_training_tree" model="ir.ui.view">
     <field name="name">ows.machine.training.tree</field>
     <field name="model">ows.machine.training</field>
     <field name="arch" type="xml">
       <tree editable="bottom">
         <field name="machine_id"/>
-        <field name="training_id" domain="[('categ_id.name', '=', 'Einweisungen')]"/>
+        <field name="training_id" domain="[('categ_id.name', 'in', ['Einweisungen', 'Kurse'])]"/>
       </tree>
     </field>
   </record>
diff --git a/views/machine_views.xml b/views/machine_views.xml
index 0dd3ec6..287c759 100644
--- a/views/machine_views.xml
+++ b/views/machine_views.xml
@@ -43,7 +43,7 @@
           <page string="Einweisungsprodukte">
             <field name="training_ids" context="{'default_machine_id': active_id}">
               <tree editable="bottom">
-                <field name="training_id" domain="[('categ_id.name', '=', 'Einweisungen')]" />
+                <field name="training_id" domain="[('categ_id.name', 'in', ['Einweisungen', 'Kurse'])]" />
               </tree>
             </field>
           </page>