diff -u b/src/EventSubscriber/MigrateProduct.php b/src/EventSubscriber/MigrateProduct.php
--- b/src/EventSubscriber/MigrateProduct.php
+++ b/src/EventSubscriber/MigrateProduct.php
@@ -34,7 +34,7 @@
 
     // Ensure the back reference to the product is correct for all variations
     // of this product.
-    if ($destination_config['plugin'] == 'entity:commerce_product') {
+    if ($event->getMigration()->id() == 'd7_product_display') {
       $variations = $event->getRow()->getDestinationProperty('variations');
       $product_id = $event->getRow()->getDestinationProperty('product_id');
       $product = Product::load($product_id);