diff --git a/dibi/libs/DibiResultIterator.php b/dibi/libs/DibiResultIterator.php
index a5e0ee95..4ae609f3 100644
--- a/dibi/libs/DibiResultIterator.php
+++ b/dibi/libs/DibiResultIterator.php
@@ -43,7 +43,7 @@
  * @copyright  Copyright (c) 2005, 2009 David Grudl
  * @package    dibi
  */
-class DibiResultIterator implements Iterator
+class DibiResultIterator implements Iterator, Countable
 {
 	/** @var DibiResult */
 	private $result;
@@ -133,4 +133,14 @@ class DibiResultIterator implements Iterator
 	}
 
 
+
+	/**
+	 * Required by the Countable interface.
+	 * @return int
+	 */
+	public function count()
+	{
+		return $this->result->getRowCount();
+	}
+
 }