diff --git a/src/Resources/config/services/command_bus.xml b/src/Resources/config/services/command_bus.xml
index 27f4b001..b1f53156 100644
--- a/src/Resources/config/services/command_bus.xml
+++ b/src/Resources/config/services/command_bus.xml
@@ -18,13 +18,13 @@
             <argument type="service" id="sylius_refund.manager.credit_memo" />
             <argument type="service" id="sylius.event_bus" />
             <argument type="service" id="sylius.repository.order" />
-            <tag name="messenger.message_handler"/>
+            <tag name="messenger.message_handler" bus="sylius.command_bus" />
         </service>
 
         <service id="Sylius\RefundPlugin\CommandHandler\SendCreditMemoHandler" >
             <argument type="service" id="sylius_refund.repository.credit_memo"/>
             <argument type="service" id="Sylius\RefundPlugin\Sender\CreditMemoEmailSender"/>
-            <tag name="messenger.message_handler" />
+            <tag name="messenger.message_handler" bus="sylius.command_bus" />
         </service>
     </services>
 </container>