diff --git a/db/migrate/20200602174329_add_unique_index_to_broadcasts.rb b/db/migrate/20200602174329_add_unique_index_to_broadcasts.rb
new file mode 100644
index 000000000..f54313804
--- /dev/null
+++ b/db/migrate/20200602174329_add_unique_index_to_broadcasts.rb
@@ -0,0 +1,7 @@
+class AddUniqueIndexToBroadcasts < ActiveRecord::Migration[5.2]
+  disable_ddl_transaction!
+
+  def change
+    add_index :broadcasts, %i[title type_of], unique: true, algorithm: :concurrently
+  end
+end