diff --git a/oaipmh-core/src/main/java/info/textgrid/middleware/SetDeliverer.java b/oaipmh-core/src/main/java/info/textgrid/middleware/SetDeliverer.java
index 328fa9ec0079cb0c71844b10258b8696a18a5a1f..5e22d9bca45d9bd997ca984b38c08ac82f6c2287 100644
--- a/oaipmh-core/src/main/java/info/textgrid/middleware/SetDeliverer.java
+++ b/oaipmh-core/src/main/java/info/textgrid/middleware/SetDeliverer.java
@@ -61,7 +61,7 @@ public class SetDeliverer {
     ListSetsType setList = new ListSetsType();
     QueryBuilder aggQuery;
     if (this.textgrid) {
-      aggQuery = QueryBuilders.matchPhraseQuery("format", TextGridMimetypes.DARIAH_COLLECTION);
+      aggQuery = QueryBuilders.matchPhraseQuery("format", TextGridMimetypes.EDITION);
     } else {
       aggQuery = QueryBuilders.matchPhraseQuery("descriptiveMetadata.dc:format",
           TextGridMimetypes.DARIAH_COLLECTION);