diff --git a/src/main/resources/update/gitbucket-core_4.24.xml b/src/main/resources/update/gitbucket-core_4.24.xml
index 03249f5..5faaac3 100644
--- a/src/main/resources/update/gitbucket-core_4.24.xml
+++ b/src/main/resources/update/gitbucket-core_4.24.xml
@@ -7,4 +7,8 @@
 
   <addPrimaryKey constraintName="IDX_ACCOUNT_EXTRA_MAIL_ADDRESS_PK" tableName="ACCOUNT_EXTRA_MAIL_ADDRESS" columnNames="USER_NAME, EXTRA_MAIL_ADDRESS"/>
   <addUniqueConstraint constraintName="IDX_ACCOUNT_EXTRA_MAIL_ADDRESS_1" tableName="ACCOUNT_EXTRA_MAIL_ADDRESS" columnNames="EXTRA_MAIL_ADDRESS"/>
+
+  <addColumn tableName="COMMIT_COMMENT">
+    <column name="DIFF" type="text" nullable="true" />
+  </addColumn>
 </changeSet>
diff --git a/src/main/scala/gitbucket/core/controller/RepositoryViewerController.scala b/src/main/scala/gitbucket/core/controller/RepositoryViewerController.scala
index a1245a4..3207e51 100644
--- a/src/main/scala/gitbucket/core/controller/RepositoryViewerController.scala
+++ b/src/main/scala/gitbucket/core/controller/RepositoryViewerController.scala
@@ -562,7 +562,8 @@
       form.fileName,
       form.oldLineNumber,
       form.newLineNumber,
-      form.issueId
+      form.issueId,
+      form.diff
     )
     form.issueId match {
       case Some(issueId) =>
@@ -613,11 +614,10 @@
       form.fileName,
       form.oldLineNumber,
       form.newLineNumber,
-      form.issueId
+      form.issueId,
+      form.diff
     )
 
-    println(form.diff) // TODO store diff into the database
-
     val comment = getCommitComment(repository.owner, repository.name, commentId.toString).get
     form.issueId match {
       case Some(issueId) =>
diff --git a/src/main/scala/gitbucket/core/model/Comment.scala b/src/main/scala/gitbucket/core/model/Comment.scala
index 328d645..b4f081e 100644
--- a/src/main/scala/gitbucket/core/model/Comment.scala
+++ b/src/main/scala/gitbucket/core/model/Comment.scala
@@ -54,6 +54,7 @@
     val registeredDate = column[java.util.Date]("REGISTERED_DATE")
     val updatedDate = column[java.util.Date]("UPDATED_DATE")
     val issueId = column[Option[Int]]("ISSUE_ID")
+    val diff = column[Option[String]]("DIFF")
     def * =
       (
         userName,
@@ -67,7 +68,8 @@
         newLine,
         registeredDate,
         updatedDate,
-        issueId
+        issueId,
+        diff
       ) <> (CommitComment.tupled, CommitComment.unapply)
 
     def byPrimaryKey(commentId: Int) = this.commentId === commentId.bind
@@ -86,7 +88,8 @@
   newLine: Option[Int],
   registeredDate: java.util.Date,
   updatedDate: java.util.Date,
-  issueId: Option[Int]
+  issueId: Option[Int],
+  diff: Option[String]
 ) extends Comment
 
 case class CommitComments(
diff --git a/src/main/scala/gitbucket/core/service/CommitsService.scala b/src/main/scala/gitbucket/core/service/CommitsService.scala
index c3142c7..f4969ac 100644
--- a/src/main/scala/gitbucket/core/service/CommitsService.scala
+++ b/src/main/scala/gitbucket/core/service/CommitsService.scala
@@ -31,7 +31,8 @@
     fileName: Option[String],
     oldLine: Option[Int],
     newLine: Option[Int],
-    issueId: Option[Int]
+    issueId: Option[Int],
+    diff: Option[String]
   )(implicit s: Session): Int =
     CommitComments returning CommitComments.map(_.commentId) insert CommitComment(
       userName = owner,
@@ -44,7 +45,8 @@
       newLine = newLine,
       registeredDate = currentDate,
       updatedDate = currentDate,
-      issueId = issueId
+      issueId = issueId,
+      diff = diff
     )
 
   def updateCommitCommentPosition(commentId: Int, commitId: String, oldLine: Option[Int], newLine: Option[Int])(
diff --git a/src/main/scala/gitbucket/core/service/PullRequestService.scala b/src/main/scala/gitbucket/core/service/PullRequestService.scala
index 2972ffa..9dd3d15 100644
--- a/src/main/scala/gitbucket/core/service/PullRequestService.scala
+++ b/src/main/scala/gitbucket/core/service/PullRequestService.scala
@@ -163,9 +163,9 @@
         // Collect comment positions
         val positions = getCommitComments(pullreq.userName, pullreq.repositoryName, pullreq.commitIdTo, true)
           .collect {
-            case CommitComment(_, _, _, commentId, _, _, Some(file), None, Some(newLine), _, _, _) =>
+            case CommitComment(_, _, _, commentId, _, _, Some(file), None, Some(newLine), _, _, _, _) =>
               (file, commentId, Right(newLine))
-            case CommitComment(_, _, _, commentId, _, _, Some(file), Some(oldLine), None, _, _, _) =>
+            case CommitComment(_, _, _, commentId, _, _, Some(file), Some(oldLine), None, _, _, _, _) =>
               (file, commentId, Left(oldLine))
           }
           .groupBy { case (file, _, _) => file }