diff --git a/main/inc/lib/extra_field.lib.php b/main/inc/lib/extra_field.lib.php
index 16e7a3d3ce..2cccf77714 100755
--- a/main/inc/lib/extra_field.lib.php
+++ b/main/inc/lib/extra_field.lib.php
@@ -126,6 +126,10 @@ class ExtraField extends Model
                 break;
             case 'skill':
                 $this->extraFieldType = EntityExtraField::SKILL_FIELD_TYPE;
+                break;
+            case 'work':
+                $this->extraFieldType = EntityExtraField::WORK_FIELD_TYPE;
+                break;
         }
 
         $this->pageUrl  = 'extra_fields.php?type='.$this->type;
@@ -154,7 +158,8 @@ class ExtraField extends Model
             'lp',
             'calendar_event',
             'lp_item',
-            'skill'
+            'skill',
+            'work'
         );
     }
 
diff --git a/src/Chamilo/CoreBundle/Entity/ExtraField.php b/src/Chamilo/CoreBundle/Entity/ExtraField.php
index 98d337d03f..297a6c902d 100644
--- a/src/Chamilo/CoreBundle/Entity/ExtraField.php
+++ b/src/Chamilo/CoreBundle/Entity/ExtraField.php
@@ -25,6 +25,7 @@ class ExtraField extends BaseAttribute
     const LP_FIELD_TYPE = 6;
     const LP_ITEM_FIELD_TYPE = 7;
     const SKILL_FIELD_TYPE = 8;
+    const WORK_FIELD_TYPE = 9;
 
     /**
      * @var integer