diff --git a/setup/sql/01-db_structure.sql b/setup/sql/01-db_structure.sql
index fa879bac..436226a3 100644
--- a/setup/sql/01-db_structure.sql
+++ b/setup/sql/01-db_structure.sql
@@ -196,7 +196,7 @@ DROP TABLE IF EXISTS `aowow_account_reputation`;
 CREATE TABLE `aowow_account_reputation` (
   `userId` int(10) unsigned NOT NULL,
   `action` tinyint(3) unsigned NOT NULL COMMENT 'e.g. upvote a comment',
-  `amount` tinyint(3) unsigned NOT NULL,
+  `amount` tinyint(3) NOT NULL,
   `sourceA` int(10) unsigned NOT NULL DEFAULT 0 COMMENT 'e.g. upvoting user',
   `sourceB` int(10) unsigned NOT NULL DEFAULT 0 COMMENT 'e.g. upvoted commentId',
   `date` int(10) unsigned NOT NULL DEFAULT 0,
diff --git a/setup/sql/updates/1763580264_01.sql b/setup/sql/updates/1763580264_01.sql
new file mode 100644
index 00000000..4b88130c
--- /dev/null
+++ b/setup/sql/updates/1763580264_01.sql
@@ -0,0 +1,2 @@
+ALTER TABLE `aowow_account_reputation`
+    MODIFY COLUMN `amount` tinyint(3) signed NOT NULL;