diff --git a/src/Drive/Approval.php b/src/Drive/Approval.php
index 56d7701a5e..a63f221522 100644
--- a/src/Drive/Approval.php
+++ b/src/Drive/Approval.php
@@ -61,6 +61,13 @@ class Approval extends \Google\Collection
    * @var string
    */
   public $approvalId;
+  /**
+   * The revision ID of the file when the approval completed successfully. This
+   * is only set when the approval status is APPROVED.
+   *
+   * @var string
+   */
+  public $approvedRevisionId;
   /**
    * The time the approval was completed.
    *
@@ -130,6 +137,23 @@ public function getApprovalId()
   {
     return $this->approvalId;
   }
+  /**
+   * The revision ID of the file when the approval completed successfully. This
+   * is only set when the approval status is APPROVED.
+   *
+   * @param string $approvedRevisionId
+   */
+  public function setApprovedRevisionId($approvedRevisionId)
+  {
+    $this->approvedRevisionId = $approvedRevisionId;
+  }
+  /**
+   * @return string
+   */
+  public function getApprovedRevisionId()
+  {
+    return $this->approvedRevisionId;
+  }
   /**
    * The time the approval was completed.
    *