diff --git a/include/upgrader/streams/core.sig b/include/upgrader/streams/core.sig
index a0a9b1bd8745c117f398424e11b662ae8e7b35f1..ac8e6b7747418718552fa3ecf14189a652bf9901 100644
--- a/include/upgrader/streams/core.sig
+++ b/include/upgrader/streams/core.sig
@@ -1 +1 @@
-8473721890e9eddb6417076c96b715a1
+934954de8914d9bd2bb8343e805340ae
diff --git a/include/upgrader/streams/core/ed60ba20-84737218.patch.sql b/include/upgrader/streams/core/ed60ba20-934954de.patch.sql
similarity index 94%
rename from include/upgrader/streams/core/ed60ba20-84737218.patch.sql
rename to include/upgrader/streams/core/ed60ba20-934954de.patch.sql
index 975dbad331b78342c070ce5a5f5abdbd6ecaa6f6..56c0b164ebc842d86be4a97e761764553e69f4f3 100644
--- a/include/upgrader/streams/core/ed60ba20-84737218.patch.sql
+++ b/include/upgrader/streams/core/ed60ba20-934954de.patch.sql
@@ -1,6 +1,6 @@
 /**
  * @version v1.8.1
- * @signature 8473721890e9eddb6417076c96b715a1
+ * @signature 934954de8914d9bd2bb8343e805340ae
  * @title Various schema improvements and bug fixes
  *
  */
@@ -46,5 +46,5 @@ ALTER TABLE `%TABLE_PREFIX%ticket_collaborator`
 
 -- Finished with patch
 UPDATE `%TABLE_PREFIX%config`
-    SET `value` = '8473721890e9eddb6417076c96b715a1'
+    SET `value` = '934954de8914d9bd2bb8343e805340ae'
     WHERE `key` = 'schema_signature' AND `namespace` = 'core';
diff --git a/setup/inc/streams/core/install-mysql.sql b/setup/inc/streams/core/install-mysql.sql
index 8d348ba4fb11e580595b6f2cd282ef7d21067e54..1dbdd3b7794c5ebd17a4ae6d8494d2642fcbcde3 100644
--- a/setup/inc/streams/core/install-mysql.sql
+++ b/setup/inc/streams/core/install-mysql.sql
@@ -609,6 +609,7 @@ CREATE TABLE `%TABLE_PREFIX%ticket_thread` (
   `pid` int(11) unsigned NOT NULL default '0',
   `ticket_id` int(11) unsigned NOT NULL default '0',
   `staff_id` int(11) unsigned NOT NULL default '0',
+  `user_id` int(11) unsigned not null default 0,
   `thread_type` enum('M','R','N') NOT NULL,
   `poster` varchar(128) NOT NULL default '',
   `source` varchar(32) NOT NULL default '',