diff --git a/packages/db/prisma/migrations/20220322064218_add_custom_domain_primary_key/migration.sql b/packages/db/prisma/migrations/20220322064218_add_custom_domain_primary_key/migration.sql
new file mode 100644
index 000000000..500ce05a5
--- /dev/null
+++ b/packages/db/prisma/migrations/20220322064218_add_custom_domain_primary_key/migration.sql
@@ -0,0 +1,5 @@
+-- DropIndex
+DROP INDEX "CustomDomain_name_key";
+
+-- AlterTable
+ALTER TABLE "CustomDomain" ADD CONSTRAINT "CustomDomain_pkey" PRIMARY KEY ("name");
diff --git a/packages/db/prisma/schema.prisma b/packages/db/prisma/schema.prisma
index 9a551ff86..98fe7fd51 100644
--- a/packages/db/prisma/schema.prisma
+++ b/packages/db/prisma/schema.prisma
@@ -59,10 +59,10 @@ model User {
 }
 
 model CustomDomain {
+  name      String   @id
   createdAt DateTime @default(now())
   ownerId   String
   owner     User     @relation(fields: [ownerId], references: [id], onDelete: Cascade)
-  name      String   @unique
 }
 
 model Credentials {