diff --git a/li.strolch.service/src/main/java/li/strolch/report/GenericReport.java b/li.strolch.service/src/main/java/li/strolch/report/GenericReport.java
index b053c80d8..950408db1 100644
--- a/li.strolch.service/src/main/java/li/strolch/report/GenericReport.java
+++ b/li.strolch.service/src/main/java/li/strolch/report/GenericReport.java
@@ -313,7 +313,6 @@ public class GenericReport {
 
 		StringParameter relationP = (StringParameter) relationParams.get(0);
 		if (relationP.getValue().isEmpty() && optional) {
-			refs.put(joinType, null);
 			return null;
 		}