diff --git a/includes/class-wc-form-handler.php b/includes/class-wc-form-handler.php
index 08948932c01..bed912ad14e 100644
--- a/includes/class-wc-form-handler.php
+++ b/includes/class-wc-form-handler.php
@@ -855,13 +855,7 @@ class WC_Form_Handler {
 			// If no variation ID is set, attempt to get a variation ID from posted attributes.
 			if ( empty( $variation_id ) ) {
 				$data_store   = WC_Data_Store::load( 'product' );
-				$variation_id = $data_store->find_matching_product_variation( $adding_to_cart, wp_unslash( $_POST ) );
-			}
-
-			// If no variation ID is set, attempt to get a variation ID from posted attributes.
-			if ( empty( $variation_id ) ) {
-				$data_store   = WC_Data_Store::load( 'product' );
-				$variation_id = $data_store->find_matching_product_variation( $adding_to_cart, wp_unslash( $_POST ) );
+				$variation_id = $data_store->find_matching_product_variation( $adding_to_cart, array_map( 'sanitize_title', wp_unslash( $_REQUEST ) ) );
 			}
 
 			// Validate the attributes.