diff --git a/resources/sql/patches/20130214.chatlogchannelid.sql b/resources/sql/patches/20130214.chatlogchannelid.sql
new file mode 100644
index 0000000000..bc522e205c
--- /dev/null
+++ b/resources/sql/patches/20130214.chatlogchannelid.sql
@@ -0,0 +1,2 @@
+ALTER TABLE `{$NAMESPACE}_chatlog`.`chatlog_event`
+  ADD `channelID` INT UNSIGNED NOT NULL;
diff --git a/src/applications/chatlog/conduit/ConduitAPI_chatlog_record_Method.php b/src/applications/chatlog/conduit/ConduitAPI_chatlog_record_Method.php
index 3bdd5c9181..1531e26c6d 100644
--- a/src/applications/chatlog/conduit/ConduitAPI_chatlog_record_Method.php
+++ b/src/applications/chatlog/conduit/ConduitAPI_chatlog_record_Method.php
@@ -42,6 +42,7 @@ final class ConduitAPI_chatlog_record_Method
     foreach ($logs as $log) {
       $obj = clone $template;
       $obj->setChannel(idx($log, 'channel'));
+      $obj->setChannelID(0);
       $obj->setType(idx($log, 'type'));
       $obj->setAuthor(idx($log, 'author'));
       $obj->setEpoch(idx($log, 'epoch'));
diff --git a/src/applications/chatlog/storage/PhabricatorChatLogEvent.php b/src/applications/chatlog/storage/PhabricatorChatLogEvent.php
index 0c29886922..ebdb600ea6 100644
--- a/src/applications/chatlog/storage/PhabricatorChatLogEvent.php
+++ b/src/applications/chatlog/storage/PhabricatorChatLogEvent.php
@@ -5,6 +5,7 @@ final class PhabricatorChatLogEvent
   implements PhabricatorPolicyInterface {
 
   protected $channel;
+  protected $channelID;
   protected $epoch;
   protected $author;
   protected $type;
diff --git a/src/infrastructure/storage/patch/PhabricatorBuiltinPatchList.php b/src/infrastructure/storage/patch/PhabricatorBuiltinPatchList.php
index c8e5ee4e77..99d6f17dda 100644
--- a/src/infrastructure/storage/patch/PhabricatorBuiltinPatchList.php
+++ b/src/infrastructure/storage/patch/PhabricatorBuiltinPatchList.php
@@ -1113,6 +1113,10 @@ final class PhabricatorBuiltinPatchList extends PhabricatorSQLPatchList {
         'type'    => 'sql',
         'name'    => $this->getPatchPath('20130214.chatlogchannel.sql'),
       ),
+      '20130214.chatlogchannelid.sql' => array(
+        'type'    => 'sql',
+        'name'    => $this->getPatchPath('20130214.chatlogchannelid.sql'),
+      ),
     );
   }