diff --git a/rtd_phosphonetx/source/java/ch/systemsx/cisd/openbis/etlserver/phosphonetx/DataSetInfoExtractorForMSInjection.java b/rtd_phosphonetx/source/java/ch/systemsx/cisd/openbis/etlserver/phosphonetx/DataSetInfoExtractorForMSInjection.java
index 7e6a9e3cf35fdf045365b8cf32ad89aadb65de1e..ac51ce35e9d4af36c15deae7c9ab74039a34ceaa 100644
--- a/rtd_phosphonetx/source/java/ch/systemsx/cisd/openbis/etlserver/phosphonetx/DataSetInfoExtractorForMSInjection.java
+++ b/rtd_phosphonetx/source/java/ch/systemsx/cisd/openbis/etlserver/phosphonetx/DataSetInfoExtractorForMSInjection.java
@@ -153,7 +153,7 @@ public class DataSetInfoExtractorForMSInjection extends AbstractDataSetInfoExtra
         {
             TechId sampleID = new TechId(sample.getId());
             List<IEntityProperty> propertiesList =
-                    Util.getUpdatedProperties(sample, sample.getEntityType(), properties);
+                    Util.getUpdatedProperties(sample, sampleType, properties);
             Set<NewAttachment> emptySet = Collections.<NewAttachment> emptySet();
             Date version = sample.getModificationDate();
             service.updateSample(new SampleUpdatesDTO(sampleID, propertiesList,