diff --git a/docs/guide/db-active-record.md b/docs/guide/db-active-record.md
index 3977e55051..b3a7f2a374 100644
--- a/docs/guide/db-active-record.md
+++ b/docs/guide/db-active-record.md
@@ -1221,7 +1221,7 @@ The opposite operation to [[yii\db\ActiveRecord::link()|link()]] is [[yii\db\Act
 which breaks an existing relationship between two Active Record instances. For example,
 
 ```php
-$customer = Customer::find()->with('orders')->all();
+$customer = Customer::find()->with('orders')->one();
 $customer->unlink('orders', $customer->orders[0]);
 ```