diff --git a/src/main/java/eu/dnetlib/dhp/schema/oaf/License.java b/src/main/java/eu/dnetlib/dhp/schema/oaf/License.java
index 70adfd4..63f7054 100644
--- a/src/main/java/eu/dnetlib/dhp/schema/oaf/License.java
+++ b/src/main/java/eu/dnetlib/dhp/schema/oaf/License.java
@@ -4,6 +4,8 @@ import java.io.Serializable;
 
 public class License implements Serializable {
 
+    private String url;
+
 
     public License() {
     }
@@ -12,8 +14,6 @@ public class License implements Serializable {
         this.url = url;
     }
 
-    private String url;
-
     public String getUrl() {
         return url;
     }