diff --git a/templates/single-product/add-to-cart/variable.php b/templates/single-product/add-to-cart/variable.php
index e637aa963da..cbc536f8608 100644
--- a/templates/single-product/add-to-cart/variable.php
+++ b/templates/single-product/add-to-cart/variable.php
@@ -36,7 +36,7 @@ do_action( 'woocommerce_before_add_to_cart_form' ); ?>
 						<td class="label"><label for="<?php echo sanitize_title( $attribute_name ); ?>"><?php echo wc_attribute_label( $attribute_name ); ?></label></td>
 						<td class="value">
 							<?php
-								$selected = isset( $_REQUEST[ 'attribute_' . sanitize_title( $attribute_name ) ] ) ? wc_clean( stripslashes( urldecode( $_REQUEST[ 'attribute_' . sanitize_title( $attribute_name ) ] ) ) ) : $product->get_variation_default_attribute( $attribute_name );
+								$selected = isset( $_REQUEST[ 'attribute_' . $attribute_name ] ) ? wc_clean( stripslashes( urldecode( $_REQUEST[ 'attribute_' . $attribute_name ] ) ) ) : $product->get_variation_default_attribute( $attribute_name );
 								wc_dropdown_variation_attribute_options( array( 'options' => $options, 'attribute' => $attribute_name, 'product' => $product, 'selected' => $selected ) );
 								echo end( $attribute_keys ) === $attribute_name ? apply_filters( 'woocommerce_reset_variations_link', '<a class="reset_variations" href="#">' . esc_html__( 'Clear', 'woocommerce' ) . '</a>' ) : '';
 							?>