diff --git a/engines/order_management/app/services/order_management/order/updater.rb b/engines/order_management/app/services/order_management/order/updater.rb
index c96201f10a..7ff69ceeaa 100644
--- a/engines/order_management/app/services/order_management/order/updater.rb
+++ b/engines/order_management/app/services/order_management/order/updater.rb
@@ -57,8 +57,7 @@ module OrderManagement
       end
 
       def update_adjustment_total
-        order.adjustment_total = adjustments.eligible.sum(:amount) +
-                                 all_adjustments.shipping.sum(:amount)
+        order.adjustment_total = all_adjustments.additional.eligible.sum(:amount)
         order.additional_tax_total = all_adjustments.tax.additional.sum(:amount)
         order.included_tax_total = order.line_item_adjustments.tax.sum(:included_tax) +
                                    all_adjustments.enterprise_fee.sum(:included_tax) +
diff --git a/engines/order_management/spec/services/order_management/order/updater_spec.rb b/engines/order_management/spec/services/order_management/order/updater_spec.rb
index 017f8b710a..f0df8269af 100644
--- a/engines/order_management/spec/services/order_management/order/updater_spec.rb
+++ b/engines/order_management/spec/services/order_management/order/updater_spec.rb
@@ -28,7 +28,7 @@ module OrderManagement
         end
 
         it "updates adjustment totals" do
-          allow(order).to receive_message_chain(:adjustments, :eligible, :sum).and_return(-10)
+          allow(order).to receive_message_chain(:all_adjustments, :additional, :eligible, :sum).and_return(-5)
           allow(order).to receive_message_chain(:all_adjustments, :tax, :additional, :sum).and_return(20)
           allow(order).to receive_message_chain(:all_adjustments, :enterprise_fee, :sum).and_return(10)
           allow(order).to receive_message_chain(:all_adjustments, :shipping, :sum).and_return(5)