diff --git a/src/main/scala/model/Issue.scala b/src/main/scala/model/Issue.scala
index 7c90c69..4216338 100644
--- a/src/main/scala/model/Issue.scala
+++ b/src/main/scala/model/Issue.scala
@@ -15,11 +15,12 @@
   def issueId = column[Int]("ISSUE_ID", O PrimaryKey)
   def openedUserName = column[String]("OPENED_USER_NAME")
   def milestoneId = column[Int]("MILESTONE_ID")
+  def assignedUserName = column[String]("ASSIGNED_USER_NAME")
   def title = column[String]("TITLE")
   def content = column[String]("CONTENT")
   def registeredDate = column[java.sql.Date]("REGISTERED_DATE")	// TODO convert java.util.Date later
   def updatedDate = column[java.sql.Date]("UPDATED_DATE")
-  def * = userName ~ repositoryName ~ issueId ~ openedUserName ~ milestoneId ~ title ~ content ~ registeredDate ~ updatedDate <> (Issue, Issue.unapply _)
+  def * = userName ~ repositoryName ~ issueId ~ openedUserName ~ milestoneId.? ~ assignedUserName.? ~ title ~ content ~ registeredDate ~ updatedDate <> (Issue, Issue.unapply _)
 }
 
 case class Issue(
@@ -27,7 +28,8 @@
     repositoryName: String,
     issueId: Int,
     openedUserName: String,
-    milestoneId: Int,
+    milestoneId: Option[Int],
+    assignedUserName: Option[String],
     title: String,
     content: String,
     registeredDate: java.sql.Date,