diff --git a/src/Symfony/Framework/ProfilerBundle/ProfilerStorage.php b/src/Symfony/Framework/ProfilerBundle/ProfilerStorage.php
index 09ebb73f80..1c0378091c 100644
--- a/src/Symfony/Framework/ProfilerBundle/ProfilerStorage.php
+++ b/src/Symfony/Framework/ProfilerBundle/ProfilerStorage.php
@@ -58,14 +58,20 @@ class ProfilerStorage
   protected function read()
   {
     $db = $this->initDb(SQLITE3_OPEN_CREATE | SQLITE3_OPEN_READ);
-    $this->data = $db->querySingle(sprintf("SELECT data FROM data WHERE token = '%s' LIMIT 1 ORDER BY created_at DESC", $db->escapeString($this->token)));
+    $data = $db->querySingle(sprintf("SELECT data FROM data WHERE token = '%s' LIMIT 1 ORDER BY created_at DESC", $db->escapeString($this->token)));
+
+    $this->data = unserialize(pack('H*', $data));
+
     $db->close();
   }
 
   public function write($data)
   {
+    $unpack = unpack('H*', serialize($data));
+    $data = $unpack[1];
+
     $db = $this->initDb(SQLITE3_OPEN_CREATE | SQLITE3_OPEN_READWRITE);
-    $db->exec(sprintf("INSERT INTO data (token, data, created_at) VALUES ('%s', '%s', %s)", $db->escapeString($this->token), $db->escapeString(serialize($data)), time()));
+    $db->exec(sprintf("INSERT INTO data (token, data, created_at) VALUES ('%s', '%s', %s)", $db->escapeString($this->token), $db->escapeString($data), time()));
     $db->close();
   }