diff --git a/datastore_server/source/java/ch/systemsx/cisd/etlserver/registrator/api/v1/impl/DataSet.java b/datastore_server/source/java/ch/systemsx/cisd/etlserver/registrator/api/v1/impl/DataSet.java
index 8acd0b0157f0a9c06c863351c408acd3f0af6dc2..a7382181a824c691eb0a20ba63f7a140af93cacd 100644
--- a/datastore_server/source/java/ch/systemsx/cisd/etlserver/registrator/api/v1/impl/DataSet.java
+++ b/datastore_server/source/java/ch/systemsx/cisd/etlserver/registrator/api/v1/impl/DataSet.java
@@ -119,7 +119,7 @@ public class DataSet<T extends DataSetInformation> extends AbstractDataSetImmuta
     {
         if (experiment != null)
         {
-        return experiment;
+            return experiment;
         } else if (sampleOrNull != null)
         {
             return sampleOrNull.getExperiment();