diff --git a/Database/SqlBuilder.php b/Database/SqlBuilder.php
index b72d0629..1eaf293d 100644
--- a/Database/SqlBuilder.php
+++ b/Database/SqlBuilder.php
@@ -267,7 +267,7 @@ class SqlBuilder extends Component
 		if ($this->query->from instanceof \Closure) {
 			$activeQuery = new ActiveQuery($this->query->modelClass);
 			call_user_func($this->query->from, $activeQuery);
-			$this->query->from = $activeQuery->toSql();
+			$this->query->from = '(' . $activeQuery->toSql() . ')';
 		}
 		if ($this->query->from instanceof ActiveQuery) {
 			$this->query->from = '(' . SqlBuilder::builder($this->query->from)->get($this->query->from) . ')';