diff --git a/system/database/DB_query_builder.php b/system/database/DB_query_builder.php
index 355613c..e6a1082 100644
--- a/system/database/DB_query_builder.php
+++ b/system/database/DB_query_builder.php
@@ -385,7 +385,7 @@
 			$alias = $this->_create_alias_from_table(trim($select));
 		}
 
-		$sql = $this->protect_identifiers($type.'('.trim($select).')').' AS '.$this->escape_identifiers(trim($alias));
+		$sql = $type.'('.$this->protect_identifiers(trim($select)).') AS '.$this->escape_identifiers(trim($alias));
 
 		$this->qb_select[] = $sql;
 		$this->qb_no_escape[] = NULL;