@@ -58,7 +58,7 @@ interface Item {
 export class AppComponent {
   firestore = inject(Firestore);
   itemCollection = collection(this.firestore, 'items');
-  item$ = collectionData<Item>(itemCollection);
+  item$ = collectionData<Item>(this.itemCollection);
 }
 ```
Original file line number	Diff line number	Diff line change
`@@ -58,7 +58,7 @@ interface Item {`
`58`	`58`	`export class AppComponent {`
`59`	`59`	`firestore = inject(Firestore);`
`60`	`60`	`itemCollection = collection(this.firestore, 'items');`
`61`		`- item$ = collectionData<Item>(itemCollection);`
	`61`	`+ item$ = collectionData<Item>(this.itemCollection);`
`62`	`62`	`}`
`63`	`63`	```
`64`	`64`