diff --git a/dnet-ariadneplus-graphdb-publisher/src/main/java/eu/dnetlib/ariadneplus/elasticsearch/model/NativePeriod.java b/dnet-ariadneplus-graphdb-publisher/src/main/java/eu/dnetlib/ariadneplus/elasticsearch/model/NativePeriod.java
index 422e5b9..d829c28 100644
--- a/dnet-ariadneplus-graphdb-publisher/src/main/java/eu/dnetlib/ariadneplus/elasticsearch/model/NativePeriod.java
+++ b/dnet-ariadneplus-graphdb-publisher/src/main/java/eu/dnetlib/ariadneplus/elasticsearch/model/NativePeriod.java
@@ -21,7 +21,7 @@ public class NativePeriod {
     }
 
     public void setPeriodName(String periodName) {
-        this.periodName = WordUtils.capitalizeFully(periodName);
+        this.periodName = periodName.toLowerCase();
     }
 
     public String getUntil() {
diff --git a/dnet-ariadneplus-graphdb-publisher/src/main/java/eu/dnetlib/ariadneplus/elasticsearch/model/Temporal.java b/dnet-ariadneplus-graphdb-publisher/src/main/java/eu/dnetlib/ariadneplus/elasticsearch/model/Temporal.java
index 8f717e4..c9d65c5 100644
--- a/dnet-ariadneplus-graphdb-publisher/src/main/java/eu/dnetlib/ariadneplus/elasticsearch/model/Temporal.java
+++ b/dnet-ariadneplus-graphdb-publisher/src/main/java/eu/dnetlib/ariadneplus/elasticsearch/model/Temporal.java
@@ -25,7 +25,7 @@ public class Temporal {
     }
 
     public void setPeriodName(String periodName) {
-        this.periodName = WordUtils.capitalizeFully(periodName);
+        this.periodName = periodName.toLowerCase();
     }
 
     public String getUntil() {
diff --git a/dnet-ariadneplus-graphdb-publisher/test/java/eu/dnetlib/ariadneplus/GraphDbReaderAndESIndexTest.java b/dnet-ariadneplus-graphdb-publisher/test/java/eu/dnetlib/ariadneplus/GraphDbReaderAndESIndexTest.java
index 1e0ebae..263b036 100644
--- a/dnet-ariadneplus-graphdb-publisher/test/java/eu/dnetlib/ariadneplus/GraphDbReaderAndESIndexTest.java
+++ b/dnet-ariadneplus-graphdb-publisher/test/java/eu/dnetlib/ariadneplus/GraphDbReaderAndESIndexTest.java
@@ -361,6 +361,16 @@ public class GraphDbReaderAndESIndexTest {
         readAndIndexTest(isRecord, recordId, datasource, collectionId);
     }
 
+    @Test
+//    @Ignore
+    public void uploadNormalizerTest2() throws Exception {
+        boolean isRecord = true;
+        String recordId = "https://ariadne-infrastructure.eu/aocat/Resource/A0D9DC1F-2C62-3423-BAE6-4248D5072585";
+        String datasource = "ads";
+        String collectionId = "321";
+        readAndIndexTest(isRecord, recordId, datasource, collectionId);
+    }
+
     private void readAndIndexTest(boolean isRecord, String recordId, String datasource, String collectionId) throws Exception {
         final ClassPathResource resource = new ClassPathResource("application.properties");
         Properties appProps = new Properties();