Code cleanup in db->order_by()
diff --git a/system/database/DB_query_builder.php b/system/database/DB_query_builder.php
index e6a1082..b7b568b 100644
--- a/system/database/DB_query_builder.php
+++ b/system/database/DB_query_builder.php
@@ -1152,7 +1152,7 @@
 
 			// Do we have a seed value?
 			$orderby = ctype_digit((string) $orderby)
-				? $orderby = sprintf($this->_random_keyword[1], $orderby)
+				? sprintf($this->_random_keyword[1], $orderby)
 				: $this->_random_keyword[0];
 		}
 		elseif (empty($orderby))