diff --git a/sevenkeys/database/migrations/00008_create_cardtrader_tables.sql b/sevenkeys/database/migrations/00008_create_cardtrader_tables.sql
index cde04ad..40988d1 100644
--- a/sevenkeys/database/migrations/00008_create_cardtrader_tables.sql
+++ b/sevenkeys/database/migrations/00008_create_cardtrader_tables.sql
@@ -1,27 +1,17 @@
 -- +goose Up
 -- +goose StatementBegin
-CREATE TABLE IF NOT EXISTS CardtraderGame (
-	Id INT PRIMARY KEY AUTO_INCREMENT,
-	Name VARCHAR(255) NOT NULL
-);
-
 CREATE TABLE IF NOT EXISTS CardtraderCategory (
 	Id INT PRIMARY KEY AUTO_INCREMENT,
-	CardtraderGameId INT NOT NULL,
-	FOREIGN KEY (CardtraderGameId) REFERENCES CardtraderGame(Id),
 	Name VARCHAR(255) NOT NULL
 );
 
 CREATE TABLE IF NOT EXISTS CardtraderExpansion (
 	Id INT PRIMARY KEY AUTO_INCREMENT,
-	CardtraderGameId INT NOT NULL,
-	FOREIGN KEY (CardtraderGameId) REFERENCES CardtraderGame(Id)
+	ExpansionCode VARCHAR(20) NOT NULL
 );
 
 CREATE TABLE IF NOT EXISTS CardtraderBlueprint (
 	Id INT PRIMARY KEY AUTO_INCREMENT,
-	CardtraderGameId INT NOT NULL,
-	FOREIGN KEY (CardtraderGameId) REFERENCES CardtraderGame(Id),
 	CardtraderCategoryId INT NOT NULL,
 	FOREIGN KEY (CardtraderCategoryId) REFERENCES CardtraderCategory(Id),
 	CardtraderExpansionId INT NOT NULL,
@@ -38,6 +28,4 @@ DROP TABLE IF EXISTS CardtraderBlueprint;
 DROP TABLE IF EXISTS CardtraderExpansion;
 
 DROP TABLE IF EXISTS CardtraderCategory;
-
-DROP TABLE IF EXISTS CardtraderGame;
 -- +goose StatementEnd