diff --git a/create-table.sql b/create-table.sql
index ae91ecd..ad170a0 100644
--- a/create-table.sql
+++ b/create-table.sql
@@ -1,16 +1,17 @@
-CREATE TABLE IF NOT EXISTS events (
-  id INT AUTO_INCREMENT PRIMARY KEY,
-  token VARCHAR(36) NOT NULL,
-  UNIQUE(token)
-) ENGINE=INNODB;
+CREATE TABLE IF NOT EXISTS `events` (
+  `id` int(11) NOT NULL AUTO_INCREMENT,
+  `token` varchar(36) NOT NULL,
+  PRIMARY KEY (`id`),
+  UNIQUE KEY `token` (`token`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
 
-CREATE TABLE IF NOT EXISTS hashes (
-  id INT AUTO_INCREMENT PRIMARY KEY,
-  event INT NOT NULL,
-  FOREIGN KEY(event) REFERENCES events(id)
-    ON DELETE CASCADE,
-  vote_round INT NOT NULL,
-  name VARCHAR(128) NOT NULL,
-  hash VARCHAR(128) NULL,
-  UNIQUE(event, vote_round, name)
-);
+CREATE TABLE IF NOT EXISTS `hashes` (
+  `id` int(11) NOT NULL AUTO_INCREMENT,
+  `event` int(11) NOT NULL,
+  `vote_round` int(11) NOT NULL,
+  `name` varchar(128) NOT NULL,
+  `hash` varchar(128) DEFAULT NULL,
+  PRIMARY KEY (`id`),
+  UNIQUE KEY `event` (`event`,`vote_round`,`name`),
+  CONSTRAINT `hashes_ibfk_1` FOREIGN KEY (`event`) REFERENCES `events` (`id`) ON DELETE CASCADE
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;