diff --git a/templates/loop/add-to-cart.php b/templates/loop/add-to-cart.php
index 0af998ee849..33211ba4d56 100644
--- a/templates/loop/add-to-cart.php
+++ b/templates/loop/add-to-cart.php
@@ -12,11 +12,12 @@ if ( ! defined( 'ABSPATH' ) ) exit; // Exit if accessed directly
 global $product;
 
 echo apply_filters( 'woocommerce_loop_add_to_cart_link',
-	sprintf( '<a href="%s" rel="nofollow" data-product_id="%s" data-product_sku="%s" class="button add_to_cart_button product_type_%s">%s</a>',
+	sprintf( '<a href="%s" rel="nofollow" data-product_id="%s" data-product_sku="%s" class="button %s product_type_%s">%s</a>',
 		esc_url( $product->add_to_cart_url() ),
 		esc_attr( $product->id ),
 		esc_attr( $product->get_sku() ),
+		$product->is_purchasable() ? 'add_to_cart_button' : '',
 		esc_attr( $product->product_type ),
 		esc_html( $product->add_to_cart_text() )
 	),
-$product );
\ No newline at end of file
+$product );