diff --git a/assets/css/twenty-twenty-one.scss b/assets/css/twenty-twenty-one.scss
index b1ffd5b9a7f..75cef33eb73 100644
--- a/assets/css/twenty-twenty-one.scss
+++ b/assets/css/twenty-twenty-one.scss
@@ -2609,13 +2609,15 @@ a.reset_variations {
 	}
 }
 
-.woocommerce {
-
+.alignwide .woocommerce {
 	& > * {
 		max-width: var( --responsive--alignwide-width );
 		display: block;
 		margin: var(--global--spacing-vertical) auto;
 	}
+}
+
+.woocommerce {
 
 	.woocommerce-notices-wrapper {
 
diff --git a/includes/class-woocommerce.php b/includes/class-woocommerce.php
index a4059876149..c5313fdbd63 100644
--- a/includes/class-woocommerce.php
+++ b/includes/class-woocommerce.php
@@ -530,6 +530,9 @@ final class WooCommerce {
 				case 'twentytwenty':
 					include_once WC_ABSPATH . 'includes/theme-support/class-wc-twenty-twenty.php';
 					break;
+				case 'twentytwentyone':
+					include_once WC_ABSPATH . 'includes/theme-support/class-wc-twenty-twenty-one.php';
+					break;
 			}
 		}
 	}