diff --git a/earwigbot/tasks/drn_clerkbot.py b/earwigbot/tasks/drn_clerkbot.py
index afca673..b00c032 100644
--- a/earwigbot/tasks/drn_clerkbot.py
+++ b/earwigbot/tasks/drn_clerkbot.py
@@ -140,7 +140,7 @@ class DRNClerkBot(Task):
         removals = set()
         query1 = "SELECT volunteer_username FROM volunteer"
         query2 = "DELETE FROM volunteer WHERE volunteer_username = ?"
-        query3 = "INSERT INTO volunteer VALUES (?)"
+        query3 = "INSERT INTO volunteer (volunteer_username) VALUES (?)"
         with conn.cursor() as cursor:
             cursor.execute(query1)
             for row in cursor:
diff --git a/earwigbot/tasks/schema/drn_clerkbot.sql b/earwigbot/tasks/schema/drn_clerkbot.sql
index ff64927..8dc0c08 100644
--- a/earwigbot/tasks/schema/drn_clerkbot.sql
+++ b/earwigbot/tasks/schema/drn_clerkbot.sql
@@ -50,8 +50,9 @@ CREATE TABLE `signature` (
 
 DROP TABLE IF EXISTS `volunteer`;
 CREATE TABLE `volunteer` (
+  `volunteer_id` int(10) unsigned NOT NULL AUTO_INCREMENT,
   `volunteer_username` varchar(512) COLLATE utf8_unicode_ci DEFAULT NULL,
-  PRIMARY KEY (`volunteer_username`)
+  PRIMARY KEY (`volunteer_id`)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;
 
--- Dump completed on 2012-07-27 00:00:00
+-- Dump completed on 2012-07-31  1:34:28