diff --git a/db/migrate/20180216173931_add_emf_ref_to_physical_rack.rb b/db/migrate/20180216173931_add_emf_ref_to_physical_rack.rb
new file mode 100644
index 000000000..ff2ae7434
--- /dev/null
+++ b/db/migrate/20180216173931_add_emf_ref_to_physical_rack.rb
@@ -0,0 +1,5 @@
+class AddEmfRefToPhysicalRack < ActiveRecord::Migration[5.0]
+  def change
+    add_column :physical_racks, :ems_ref, :string
+  end
+end