diff --git a/src/ORM/Query.php b/src/ORM/Query.php
index 442c87a3b96..7739e1036be 100644
--- a/src/ORM/Query.php
+++ b/src/ORM/Query.php
@@ -694,7 +694,7 @@ public function __clone()
      */
     public function count()
     {
-        if (isset($this->_resultsCount)) {
+        if (!$this->_dirty && isset($this->_resultsCount)) {
             return $this->_resultsCount;
         }