diff --git a/libreplan-webapp/src/main/java/org/libreplan/web/users/settings/ISettingsModel.java b/libreplan-webapp/src/main/java/org/libreplan/web/users/settings/ISettingsModel.java
index 1db29809b..b95d164b3 100644
--- a/libreplan-webapp/src/main/java/org/libreplan/web/users/settings/ISettingsModel.java
+++ b/libreplan-webapp/src/main/java/org/libreplan/web/users/settings/ISettingsModel.java
@@ -65,4 +65,6 @@ public interface ISettingsModel {
 
     String getLoginName();
 
+    boolean isBound();
+
 }
diff --git a/libreplan-webapp/src/main/java/org/libreplan/web/users/settings/SettingsController.java b/libreplan-webapp/src/main/java/org/libreplan/web/users/settings/SettingsController.java
index 91fafdc7b..db6a1515e 100644
--- a/libreplan-webapp/src/main/java/org/libreplan/web/users/settings/SettingsController.java
+++ b/libreplan-webapp/src/main/java/org/libreplan/web/users/settings/SettingsController.java
@@ -171,4 +171,9 @@ public class SettingsController extends GenericForwardComposer {
     public String getEmail() {
         return settingsModel.getEmail();
     }
+
+    public boolean isBound() {
+        return settingsModel.isBound();
+    }
+
 }
diff --git a/libreplan-webapp/src/main/java/org/libreplan/web/users/settings/SettingsModel.java b/libreplan-webapp/src/main/java/org/libreplan/web/users/settings/SettingsModel.java
index 771c8dd1d..c75632277 100644
--- a/libreplan-webapp/src/main/java/org/libreplan/web/users/settings/SettingsModel.java
+++ b/libreplan-webapp/src/main/java/org/libreplan/web/users/settings/SettingsModel.java
@@ -194,4 +194,12 @@ public class SettingsModel implements ISettingsModel {
         return user.getEmail();
     }
 
+    @Override
+    public boolean isBound() {
+        if (user != null) {
+            return user.isBound();
+        }
+        return false;
+    }
+
 }
diff --git a/libreplan-webapp/src/main/webapp/settings/settings.zul b/libreplan-webapp/src/main/webapp/settings/settings.zul
index 601fc5f2a..20243b223 100644
--- a/libreplan-webapp/src/main/webapp/settings/settings.zul
+++ b/libreplan-webapp/src/main/webapp/settings/settings.zul
@@ -49,7 +49,7 @@
                             </columns>
                             <rows>
                                 <row>
-                                    <label value="${i18n:_('Login')}" />
+                                    <label value="${i18n:_('Username')}" />
                                     <textbox id="loginName"
                                         value="@{settingsController.loginName}"
                                         disabled="true"
@@ -58,12 +58,14 @@
                                 <row>
                                     <label value="${i18n:_('First name')}" />
                                     <textbox id="firstName"
-                                        value="@{settingsController.firstName}" width="300px"/>
+                                        value="@{settingsController.firstName}" width="300px"
+                                        disabled="@{settingsController.bound}" />
                                 </row>
                                 <row>
                                     <label value="${i18n:_('Last name')}" />
                                     <textbox id="lastName"
-                                        value="@{settingsController.lastName}" width="300px"/>
+                                        value="@{settingsController.lastName}" width="300px"
+                                        disabled="@{settingsController.bound}" />
                                 </row>
                                 <row>
                                     <label value="${i18n:_('E-mail')}" />