diff --git a/includes/kohana/modules/database/classes/kohana/database/query.php b/includes/kohana/modules/database/classes/kohana/database/query.php
index 96db093..f08f3c1 100644
--- a/includes/kohana/modules/database/classes/kohana/database/query.php
+++ b/includes/kohana/modules/database/classes/kohana/database/query.php
@@ -214,7 +214,7 @@ class Kohana_Database_Query {
 			// Set the cache key based on the database instance name and SQL
 			$cache_key = 'Database::query("'.$db.'", "'.$sql.'")';
 
-			if ($result = Kohana::cache($cache_key, NULL, $this->_lifetime))
+			if (! is_null($result = Kohana::cache($cache_key, NULL, $this->_lifetime)))
 			{
 				// Return a cached result
 				return new Database_Result_Cached($result, $sql, $this->_as_object, $this->_object_params);