diff --git a/extrafield_views_integration.module b/extrafield_views_integration.module
index d937b4b..9acc3a9 100755
--- a/extrafield_views_integration.module
+++ b/extrafield_views_integration.module
@@ -69,7 +69,7 @@ function _extrafield_views_integration_get_extra_fields_for_entity_type($entity_
       foreach ($temp_fields as $field_name => $temp_field) {
         if (isset($temp_field['callback'])) {
           if (isset($temp_field['file']) && file_exists($temp_field['file'])) {
-            require_once($temp_field['file']);
+            require_once( DRUPAL_ROOT . '/' . $temp_field['file']);
           }
           if (function_exists($temp_field['callback'])) {
             $extra_fields[$field_name] = array(
@@ -78,6 +78,10 @@ function _extrafield_views_integration_get_extra_fields_for_entity_type($entity_
               'description' => $temp_field['description'],
               'callback' => $temp_field['callback'],
             );
+            if (isset($temp_field['file'])) {
+              $extra_fields[$field_name]['file']
+                = DRUPAL_ROOT . '/' . $temp_field['file'];
+            }
           }
         }
       }
diff --git a/views/extrafield_views_integration.views.inc b/views/extrafield_views_integration.views.inc
index 6691ea9..f267901 100755
--- a/views/extrafield_views_integration.views.inc
+++ b/views/extrafield_views_integration.views.inc
@@ -36,6 +36,10 @@ function extrafield_views_integration_views_data() {
           'callback' => $extra_field['callback'],
         ),
       );
+      if (isset($extra_field['file'])) {
+        $data[$entity_info['base table']][$key]['field']['file']
+          = $extra_field['file'];
+      }
     }
   }
   return $data;
diff --git a/views/handlers/field/extrafield_views_integration_handler_field_extrafield.inc b/views/handlers/field/extrafield_views_integration_handler_field_extrafield.inc
index a331ebe..6b60c28 100755
--- a/views/handlers/field/extrafield_views_integration_handler_field_extrafield.inc
+++ b/views/handlers/field/extrafield_views_integration_handler_field_extrafield.inc
@@ -20,6 +20,9 @@ class extrafield_views_integration_handler_field_extrafield extends views_handle
   public function render($values) {
     $return = '';
     if (($entity = $this->get_value($values)) && entity_access('view', $this->entity_type, $entity)) {
+      if (isset($this->definition['file'])) {
+        require_once $this->definition['file'];
+      }
       $return = call_user_func_array($this->definition['callback'], array('entity' => $entity));
     }
     return $return;