diff --git a/src/Symfony/Component/HttpFoundation/Session/Storage/Handler/MemcacheSessionHandler.php b/src/Symfony/Component/HttpFoundation/Session/Storage/Handler/MemcacheSessionHandler.php
index 00488fd0d9..fe29832f70 100644
--- a/src/Symfony/Component/HttpFoundation/Session/Storage/Handler/MemcacheSessionHandler.php
+++ b/src/Symfony/Component/HttpFoundation/Session/Storage/Handler/MemcacheSessionHandler.php
@@ -117,7 +117,10 @@ class MemcacheSessionHandler implements \SessionHandlerInterface
      */
     public function write($sessionId, $data)
     {
-        return $this->memcache->set($this->prefix.$sessionId, $data, 0, $this->memcacheOptions['expiretime']);
+        if (!$this->memcache->replace($this->prefix.$sessionId, $data, 0, $this->memcacheOptions['expiretime'])) {
+            return $this->memcache->set($this->prefix.$sessionId, $data, 0, $this->memcacheOptions['expiretime']);
+        }
+        return true;
     }
 
     /**