diff --git a/datastore_server/source/java/ch/ethz/sis/openbis/generic/server/dss/plugins/sync/datasource/MaterialDeliverer.java b/datastore_server/source/java/ch/ethz/sis/openbis/generic/server/dss/plugins/sync/datasource/MaterialDeliverer.java
index 7b72d5c38d75b14608eba6378039216e607a0fd1..3cf83f388ac3a87e74ea57d24496e13515cf46e8 100644
--- a/datastore_server/source/java/ch/ethz/sis/openbis/generic/server/dss/plugins/sync/datasource/MaterialDeliverer.java
+++ b/datastore_server/source/java/ch/ethz/sis/openbis/generic/server/dss/plugins/sync/datasource/MaterialDeliverer.java
@@ -69,7 +69,7 @@ public class MaterialDeliverer extends AbstractEntityDeliverer<Material>
             addLink(writer, "#action=VIEW&entity=MATERIAL&code=" + code + "&type=" + type);
             startXdElement(writer);
             writer.writeAttribute("code", code);
-            writer.writeAttribute("dsKind", "MATERIAL");
+            writer.writeAttribute("kind", "MATERIAL");
             addRegistrationDate(writer, material);
             addRegistrator(writer, material);
             addType(writer, material.getType());