diff --git a/src/WebAppDIRAC/WebApp/handler/PilotMonitorHandler.py b/src/WebAppDIRAC/WebApp/handler/PilotMonitorHandler.py
index 3e7b69304..2230d0bfa 100644
--- a/src/WebAppDIRAC/WebApp/handler/PilotMonitorHandler.py
+++ b/src/WebAppDIRAC/WebApp/handler/PilotMonitorHandler.py
@@ -3,7 +3,6 @@
 
 from DIRAC import gConfig, S_OK, gLogger
 from DIRAC.Core.Utilities.Graphs.Palette import Palette
-from DIRAC.ConfigurationSystem.Client.Helpers.Registry import getUsernameForDN
 from DIRAC.WorkloadManagementSystem.Client.PilotManagerClient import PilotManagerClient
 from WebAppDIRAC.Lib.WebHandler import WebHandler
 
@@ -214,8 +213,6 @@ def web_getStatisticsData(self, statsField):
             selector = "DestinationSite"
         elif statsField == "Owner Group":
             selector = "OwnerGroup"
-        elif statsField == "Owner":
-            selector = "OwnerDN"
         else:
             selector = statsField
 
@@ -232,9 +229,6 @@ def web_getStatisticsData(self, statsField):
             statistics = {}
             if (result := RPC.getCounters("PilotAgents", [selector], req))["OK"]:
                 for status, count in result["Value"]:
-                    if "OwnerDN" in status:
-                        if (userName := getUsernameForDN(status["OwnerDN"]))["OK"]:
-                            status["OwnerDN"] = userName["Value"]
                     statistics[status[selector]] = count
 
             result = S_OK(statistics)
diff --git a/src/WebAppDIRAC/WebApp/static/DIRAC/PilotMonitor/classes/PilotMonitor.js b/src/WebAppDIRAC/WebApp/static/DIRAC/PilotMonitor/classes/PilotMonitor.js
index 81efb2c31..477770c2b 100755
--- a/src/WebAppDIRAC/WebApp/static/DIRAC/PilotMonitor/classes/PilotMonitor.js
+++ b/src/WebAppDIRAC/WebApp/static/DIRAC/PilotMonitor/classes/PilotMonitor.js
@@ -106,9 +106,6 @@ Ext.define("DIRAC.PilotMonitor.classes.PilotMonitor", {
     {
       name: "Broker",
     },
-    {
-      name: "OwnerDN",
-    },
     {
       name: "GridSite",
     },
@@ -385,12 +382,6 @@ Ext.define("DIRAC.PilotMonitor.classes.PilotMonitor", {
           hidden: true,
         },
       },
-      OwnerDN: {
-        dataIndex: "OwnerDN",
-        properties: {
-          hidden: true,
-        },
-      },
       OwnerGroup: {
         dataIndex: "OwnerGroup",
       },
diff --git a/src/WebAppDIRAC/WebApp/static/DIRAC/TransformationMonitor/classes/TransformationMonitor.js b/src/WebAppDIRAC/WebApp/static/DIRAC/TransformationMonitor/classes/TransformationMonitor.js
index ad68fd8af..511637a94 100644
--- a/src/WebAppDIRAC/WebApp/static/DIRAC/TransformationMonitor/classes/TransformationMonitor.js
+++ b/src/WebAppDIRAC/WebApp/static/DIRAC/TransformationMonitor/classes/TransformationMonitor.js
@@ -81,7 +81,7 @@ Ext.define("DIRAC.TransformationMonitor.classes.TransformationMonitor", {
       name: "EventsPerJob",
     },
     {
-      name: "AuthorDN",
+      name: "Author",
     },
     {
       name: "AuthorGroup",
@@ -553,8 +553,8 @@ Ext.define("DIRAC.TransformationMonitor.classes.TransformationMonitor", {
           hidden: true,
         },
       },
-      AuthorDN: {
-        dataIndex: "AuthorDN",
+      Author: {
+        dataIndex: "Author",
         properties: {
           hidden: true,
         },