diff --git a/internal/db/migrations/00016_add_unique_account_name_per_space_index.sql b/internal/db/migrations/00016_add_unique_account_name_per_space_index.sql
new file mode 100644
index 0000000..f078b3b
--- /dev/null
+++ b/internal/db/migrations/00016_add_unique_account_name_per_space_index.sql
@@ -0,0 +1,5 @@
+-- +goose Up
+CREATE UNIQUE INDEX unique_account_name_per_space_index ON accounts(name, space_id);
+
+-- +goose Down
+DROP INDEX unique_account_name_per_space_index;