diff --git a/xds/src/main/java/io/grpc/xds/CdsLoadBalancer2.java b/xds/src/main/java/io/grpc/xds/CdsLoadBalancer2.java
index 4ba0a32030e..7ee600998d2 100644
--- a/xds/src/main/java/io/grpc/xds/CdsLoadBalancer2.java
+++ b/xds/src/main/java/io/grpc/xds/CdsLoadBalancer2.java
@@ -129,6 +129,9 @@ private void start() {
 
     private void shutdown() {
       root.shutdown();
+      if (childLb != null) {
+        childLb.shutdown();
+      }
     }
 
     private void handleClusterDiscovered() {
diff --git a/xds/src/test/java/io/grpc/xds/CdsLoadBalancer2Test.java b/xds/src/test/java/io/grpc/xds/CdsLoadBalancer2Test.java
index b95117acbff..9a3aa2934d6 100644
--- a/xds/src/test/java/io/grpc/xds/CdsLoadBalancer2Test.java
+++ b/xds/src/test/java/io/grpc/xds/CdsLoadBalancer2Test.java
@@ -139,6 +139,7 @@ public void tearDown() {
     loadBalancer.shutdown();
     assertThat(xdsClient.watchers).isEmpty();
     assertThat(xdsClientRefs).isEqualTo(0);
+    assertThat(childBalancers).isEmpty();
   }
 
   @Test