diff --git a/includes/entity.inc b/includes/entity.inc
index 59473c2..f24cd1c 100644
--- a/includes/entity.inc
+++ b/includes/entity.inc
@@ -708,7 +708,7 @@ class EntityFieldQuery {
    * @return EntityFieldQuery
    *   The called object.
    */
-  public function entityOrderBy($name, $direction) {
+  public function entityOrderBy($name, $direction = "ASC") {
     $this->entityOrder[$name] = $direction;
     return $this;
   }
@@ -730,7 +730,7 @@ class EntityFieldQuery {
    * @return EntityFieldQuery
    *   The called object.
    */
-  public function fieldOrderBy($field, $column, $direction) {
+  public function fieldOrderBy($field, $column, $direction = "ASC") {
     if (is_scalar($field)) {
       $field = field_info_field($field);
     }
@@ -763,7 +763,7 @@ class EntityFieldQuery {
    * @return EntityFieldQuery
    *   The called object.
    */
-  public function propertyOrderBy($column, $direction) {
+  public function propertyOrderBy($column, $direction = "ASC") {
     $this->propertyOrder[] = array(
       'column' => $column,
       'direction' => $direction,