diff --git a/priv/repo/migrations/20250810213740_add_member_content_behaviour_to_source.exs b/priv/repo/migrations/20250810213740_add_member_content_behaviour_to_source.exs
new file mode 100644
index 0000000..4faf0f3
--- /dev/null
+++ b/priv/repo/migrations/20250810213740_add_member_content_behaviour_to_source.exs
@@ -0,0 +1,9 @@
+defmodule Pinchflat.Repo.Migrations.AddMembersContentBehaviourToSource do
+  use Ecto.Migration
+
+  def change do
+    alter table(:sources) do
+      add :members_content_behaviour, :string, null: false, default: "include"
+    end
+  end
+end