diff --git a/dnet-ariadneplus/src/main/resources/es/schemaAriadneplusElasticsearch.curl b/dnet-ariadneplus/src/main/resources/es/schemaAriadneplusElasticsearch.curl
index 2a04585..1721fba 100644
--- a/dnet-ariadneplus/src/main/resources/es/schemaAriadneplusElasticsearch.curl
+++ b/dnet-ariadneplus/src/main/resources/es/schemaAriadneplusElasticsearch.curl
@@ -1,6 +1,7 @@
 curl -X PUT "http://elastic-test.ariadne.d4science.org:9200/ariadneplus?pretty" -H 'Content-Type: application/json'     -d '
 {
    "mappings": {
+      "dynamic": false,
       "properties": {
          "derivedSubject": {
             "properties": {