diff --git a/src/main/java/ch/psi/daq/queryrest/controller/validator/QueryValidator.java b/src/main/java/ch/psi/daq/queryrest/controller/validator/QueryValidator.java
index ba0e7b8..3e03ea6 100644
--- a/src/main/java/ch/psi/daq/queryrest/controller/validator/QueryValidator.java
+++ b/src/main/java/ch/psi/daq/queryrest/controller/validator/QueryValidator.java
@@ -14,6 +14,8 @@ import ch.psi.daq.domain.query.DAQQuery;
 import ch.psi.daq.domain.query.DAQQueryElement;
 import ch.psi.daq.domain.query.operation.Aggregation;
 import ch.psi.daq.domain.query.operation.QueryField;
+import ch.psi.daq.domain.query.transform.ExecutionEnvironment;
+import ch.psi.daq.domain.query.transform.ValueTransformationSequence;
 import ch.psi.daq.domain.request.Request;
 import ch.psi.daq.queryrest.config.QueryRestConfig;
 
@@ -93,6 +95,10 @@ public class QueryValidator implements Validator {
       if (query.getValueTransformations() != null && !query.getValueTransformations().isEmpty()) {
          // without this field, json will not contain transformedValue
          query.addField(QueryField.transformedValue);
+
+         for (ValueTransformationSequence transformationSequence : query.getValueTransformations()) {
+            transformationSequence.setExecutionEnvironment(ExecutionEnvironment.QUERYING);
+         }
       }
    }
 }