diff --git a/tests/Utils/Stubs/memcached.php b/tests/Utils/Stubs/memcached.php
index 4b8da2c6f623b8d21c8d40bdf411434c9e99206f..f2b6fa5daac9abbcd6f546232490045e829da8b4 100644
--- a/tests/Utils/Stubs/memcached.php
+++ b/tests/Utils/Stubs/memcached.php
@@ -1301,8 +1301,9 @@ class Memcached  {
 /**
  * @link https://php.net/manual/en/class.memcachedexception.php
  */
-class MemcachedException extends RuntimeException  {
-
+if (!class_exists('MemcachedException')) {
+    class MemcachedException extends RuntimeException
+    {
+    }
 }
 // End of memcached v.3.0.4
-?>