Fix a typo
diff --git a/system/database/drivers/pdo/pdo_result.php b/system/database/drivers/pdo/pdo_result.php
index 8dc16b1..322da8d 100644
--- a/system/database/drivers/pdo/pdo_result.php
+++ b/system/database/drivers/pdo/pdo_result.php
@@ -56,7 +56,7 @@
 		{
 			return $this->num_rows = count($this->result_object);
 		}
-		elseif (($this->num_rows = $this->restul_id->rowCount()) > 0)
+		elseif (($this->num_rows = $this->result_id->rowCount()) > 0)
 		{
 			return $this->num_rows;
 		}