diff --git a/includes/wc-template-functions.php b/includes/wc-template-functions.php
index 7d6926926c2..ef3db1e6593 100644
--- a/includes/wc-template-functions.php
+++ b/includes/wc-template-functions.php
@@ -1911,6 +1911,7 @@ if ( ! function_exists( 'wc_dropdown_variation_attribute_options' ) ) {
 			'selected' 	       => false,
 			'name'             => '',
 			'id'               => '',
+			'class'            => '',
 			'show_option_none' => __( 'Choose an option', 'woocommerce' )
 		) );
 
@@ -1919,13 +1920,14 @@ if ( ! function_exists( 'wc_dropdown_variation_attribute_options' ) ) {
 		$attribute = $args['attribute'];
 		$name      = $args['name'] ? $args['name'] : 'attribute_' . sanitize_title( $attribute );
 		$id        = $args['id'] ? $args['id'] : sanitize_title( $attribute );
+		$class     = $args['class'];
 
 		if ( empty( $options ) && ! empty( $product ) && ! empty( $attribute ) ) {
 			$attributes = $product->get_variation_attributes();
 			$options    = $attributes[ $attribute ];
 		}
 
-		echo '<select id="' . esc_attr( $id ) . '" name="' . esc_attr( $name ) . '" data-attribute_name="attribute_' . esc_attr( sanitize_title( $attribute ) ) . '">';
+		echo '<select id="' . esc_attr( $id ) . '" class="' . esc_attr( $class ) . '" name="' . esc_attr( $name ) . '" data-attribute_name="attribute_' . esc_attr( sanitize_title( $attribute ) ) . '">';
 
 		if ( $args['show_option_none'] ) {
 			echo '<option value="">' . esc_html( $args['show_option_none'] ) . '</option>';