diff --git a/oaipmh-core/src/main/java/info/textgrid/middleware/IdentifierListDeliverer.java b/oaipmh-core/src/main/java/info/textgrid/middleware/IdentifierListDeliverer.java
index cabea5ad8c1723fb156ccf6608c82b0442a90631..2c0df359182ca7d06c86816c544ff6d65d096899 100644
--- a/oaipmh-core/src/main/java/info/textgrid/middleware/IdentifierListDeliverer.java
+++ b/oaipmh-core/src/main/java/info/textgrid/middleware/IdentifierListDeliverer.java
@@ -173,7 +173,7 @@ public class IdentifierListDeliverer {
 
 				if (this.textgrid && hit.getFields().get(formatField).getValue()
 						.toString().equals(formatToFilter)) {
-					
+					System.out.println("textgrid!!!!");
 					datestamp = hit.getFields().get(dateOfObjectCreation)
 							.getValue().toString();
 
diff --git a/oaipmh-core/src/main/java/info/textgrid/middleware/OAIPMHImpl.java b/oaipmh-core/src/main/java/info/textgrid/middleware/OAIPMHImpl.java
index 1fd542fd94b5eaa5158a0b7dc594094a790c9c7d..b12cab729378eea969fddc5bf2b94b6535b57f78 100644
--- a/oaipmh-core/src/main/java/info/textgrid/middleware/OAIPMHImpl.java
+++ b/oaipmh-core/src/main/java/info/textgrid/middleware/OAIPMHImpl.java
@@ -200,7 +200,7 @@ public class OAIPMHImpl implements OAIPMHProducer {
 				errorValues.add("Until");
 			}
 			if (request.getSet() != null) {
-				errorValues.add("set");
+				errorValues.add("Set");
 			}
 
 			error.setError(TGConstants.OAI_BAD_ARGUMENT).setValue(
diff --git a/pom.xml b/pom.xml
index 75c8de2c641463cc1b8f9bad56df43467688946e..d235920b9ec6d9859fb5844dd9e7374fb265ec9b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -8,7 +8,7 @@
   <name>TextGrid :: TG-OAI-PMH :: Parent</name>
   <properties>
     <tgauth.wsdl>https://textgridlab.org/1.0/tgauth/rbacSoap/wsdl/tgextra.wsdl</tgauth.wsdl>
-    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceqqEncoding>
     <sonar.host.url>https://ci.bibforge.org/sonar</sonar.host.url>
     <cxf.version>3.0.3</cxf.version>
     <tgcrud.version>5.5.9-SNAPSHOT</tgcrud.version>