diff --git a/db/migrate/20241213003659_add_unique_index_to_projects_identifier.rb b/db/migrate/20241213003659_add_unique_index_to_projects_identifier.rb
new file mode 100644
index 000000000..dbfe9c56f
--- /dev/null
+++ b/db/migrate/20241213003659_add_unique_index_to_projects_identifier.rb
@@ -0,0 +1,5 @@
+class AddUniqueIndexToProjectsIdentifier < ActiveRecord::Migration[7.2]
+  def change
+    add_index :projects, :identifier, :unique => true
+  end
+end