diff --git a/db/migrate/20190906151259_reset_negative_stock_levels.rb b/db/migrate/20190906151259_reset_negative_stock_levels.rb
new file mode 100644
index 0000000000..ec0be5a4be
--- /dev/null
+++ b/db/migrate/20190906151259_reset_negative_stock_levels.rb
@@ -0,0 +1,6 @@
+class ResetNegativeStockLevels < ActiveRecord::Migration
+  def up
+    # Reset stock to zero for all on_demand variants that have negative stock
+    execute "UPDATE spree_stock_items SET count_on_hand = '0' WHERE count_on_hand < 0 AND backorderable IS TRUE"
+  end
+end