diff --git a/src/class-lsq-register-block.php b/src/class-lsq-register-block.php
index 6ebdc73..f324463 100644
--- a/src/class-lsq-register-block.php
+++ b/src/class-lsq-register-block.php
@@ -121,7 +121,7 @@ public function filter_button_block_markup( $block_content = '', $block = array(
 				$classes .= ' lemonsqueezy-button';
 			}
 
-			$block_content = str_replace( '<a class="wp-block-button__link">', '<a class="' . $classes . '" href="' . $purchase_link . '">', $block_content );
+			$block_content = str_replace( '<a class="wp-block-button__link wp-element-button">', '<a class="' . $classes . '" href="' . $purchase_link . '">', $block_content );
 		}
 		if ( isset( $block['blockName'] ) && 'lemonsqueezy/ls-button' === $block['blockName'] ) {
 			$args = wp_parse_args( $block['attrs'] );