diff --git a/src/main/java/de/ids_mannheim/korap/user/UserDetails.java b/src/main/java/de/ids_mannheim/korap/user/UserDetails.java
new file mode 100644
index 0000000..47ca9f7
--- /dev/null
+++ b/src/main/java/de/ids_mannheim/korap/user/UserDetails.java
@@ -0,0 +1,27 @@
+package de.ids_mannheim.korap.user;
+
+/**
+ * @author hanl
+ * @date 22/01/2016
+ * persistence issue with query request
+ */
+public class UserDetails extends Userdata {
+
+    public UserDetails(Integer userid) {
+        super(userid);
+    }
+
+    @Override
+    public String[] requiredFields() {
+        return new String[] { Attributes.EMAIL, Attributes.ADDRESS,
+                Attributes.LASTNAME, Attributes.FIRSTNAME };
+    }
+
+    @Override
+    public String[] defaultFields() {
+        return new String[] { Attributes.EMAIL, Attributes.ADDRESS,
+                Attributes.LASTNAME, Attributes.FIRSTNAME, Attributes.PHONE,
+                Attributes.COUNTRY, Attributes.INSTITUTION, Attributes.GENDER };
+    }
+
+}