diff --git a/src/components-examples/cdk/tree/cdk-tree-flat/cdk-tree-flat-example.ts b/src/components-examples/cdk/tree/cdk-tree-flat/cdk-tree-flat-example.ts
index 230059b1c7cf..6eccf7acdfbb 100644
--- a/src/components-examples/cdk/tree/cdk-tree-flat/cdk-tree-flat-example.ts
+++ b/src/components-examples/cdk/tree/cdk-tree-flat/cdk-tree-flat-example.ts
@@ -88,7 +88,13 @@ export class CdkTreeFlatExample {
   }
 
   shouldRender(node: ExampleFlatNode) {
-    const parent = this.getParentNode(node);
-    return !parent || parent.isExpanded;
+    let parent = this.getParentNode(node);
+    while (parent) {
+      if (!parent.isExpanded) {
+        return false;
+      }
+      parent = this.getParentNode(parent);
+    }
+    return true;
   }
 }