diff --git a/Resources/config/services.xml b/Resources/config/services.xml
index 594041e..1eff195 100644
--- a/Resources/config/services.xml
+++ b/Resources/config/services.xml
@@ -5,11 +5,11 @@
     <services>
         <service class="Mapbender\DataSourceBundle\Component\DataStoreService" id="data.source">
             <argument type="service" id="service_container"/>
-            <argument key="declarationPath">dataStores</argument>
+            <argument>dataStores</argument><!-- declaration path -->
         </service>
         <service class="Mapbender\DataSourceBundle\Component\FeatureTypeService" id="features">
             <argument type="service" id="service_container"/>
-            <argument key="declarationPath">featureTypes</argument>
+            <argument>featureTypes</argument><!-- declaration path -->
         </service>
     </services>
-</container>
\ No newline at end of file
+</container>