diff --git a/src/Traits/OrderItemCustomerOptionCapableTrait.php b/src/Traits/OrderItemCustomerOptionCapableTrait.php
index 4d42e7ca..b13272df 100644
--- a/src/Traits/OrderItemCustomerOptionCapableTrait.php
+++ b/src/Traits/OrderItemCustomerOptionCapableTrait.php
@@ -110,6 +110,27 @@ public function equals(SyliusOrderItemInterface $item): bool
 
         // iterate over all options and compare their values
         foreach ($itemCustomerConfiguration as $code => $value) {
+            // If one option is multi-select and the other one isn't they're not equal
+            if (is_array($value) !== is_array($curItemCustomerConfiguration[$code])) {
+                return false;
+            }
+
+            // If it's multi-select
+            if (is_array($value)) {
+                if (count($value) !== count($curItemCustomerConfiguration[$code])) {
+                    return false;
+                }
+
+                foreach ($curItemCustomerConfiguration[$code] as $optionKey => $multiSelectValue) {
+                    if ($multiSelectValue->getOptionValue() !== $value[$optionKey]->getOptionValue()) {
+                        return false;
+                    }
+                }
+
+                return false;
+            }
+
+            // It's a normal value option
             if ($curItemCustomerConfiguration[$code]->getOptionValue() !== $value->getOptionValue()) {
                 return false;
             }