diff --git a/src/test/java/ch/psi/daq/test/queryrest/query/DummyCassandraReader.java b/src/test/java/ch/psi/daq/test/queryrest/query/DummyCassandraReader.java
index 715fd2a..769e035 100644
--- a/src/test/java/ch/psi/daq/test/queryrest/query/DummyCassandraReader.java
+++ b/src/test/java/ch/psi/daq/test/queryrest/query/DummyCassandraReader.java
@@ -254,7 +254,12 @@ public class DummyCassandraReader implements CassandraReader {
             i -> i * 10,
             i -> 0,
             i -> i,
-            query.getChannel()).stream();
+            query.getChannel())
+            .stream()
+            .map(metaPulse -> {
+               metaPulse.setKeyspace(KEYSPACE);
+               return metaPulse;
+            });
    }
 
    /**