diff --git a/postgres/004-set-type.sql b/postgres/004-set-type.sql
new file mode 100644
index 0000000..dd235f9
--- /dev/null
+++ b/postgres/004-set-type.sql
@@ -0,0 +1,4 @@
+ALTER TABLE "sets"
+ADD COLUMN IF NOT EXISTS "set_type" TEXT NOT NULL DEFAULT 'core';
+
+CREATE INDEX IF NOT EXISTS "sets_type" ON "sets" ("set_type");
diff --git a/tutor/database.py b/tutor/database.py
index 4b7e520..2d27165 100644
--- a/tutor/database.py
+++ b/tutor/database.py
@@ -335,14 +335,16 @@ async def store_price(
     )
 
 
-async def store_set(db: psycopg.AsyncCursor, set_code: str, name: str) -> None:
+async def store_set(
+    db: psycopg.AsyncCursor, set_code: str, set_type: str, name: str
+) -> None:
     await db.execute(
         """
-        INSERT INTO "sets" ("set_code", "name")
-        VALUES (%(set_code)s, %(name)s)
+        INSERT INTO "sets" ("set_code", "set_type", "name")
+        VALUES (%(set_code)s, %(set_type)s, %(name)s)
         ON CONFLICT ("set_code") DO NOTHING
         """,
-        {"set_code": set_code, "name": name},
+        {"set_code": set_code, "set_type": set_type, "name": name},
     )