diff --git a/src/test/java/com/google/jenkins/plugins/computeengine/AutofilledNetworkConfigurationTest.java b/src/test/java/com/google/jenkins/plugins/computeengine/AutofilledNetworkConfigurationTest.java
index c806e664..d27fcbb0 100644
--- a/src/test/java/com/google/jenkins/plugins/computeengine/AutofilledNetworkConfigurationTest.java
+++ b/src/test/java/com/google/jenkins/plugins/computeengine/AutofilledNetworkConfigurationTest.java
@@ -94,7 +94,7 @@ public void testDoCheckNetworkItemsValid() {
 
   @Test
   public void testDoFillSubnetworkItemsEmptyRegion() throws IOException {
-    DescriptorImpl descriptor = subnetworkFillDescriptorSetup(ImmutableList.of(SUBNETWORK_NAME));
+    DescriptorImpl descriptor = subnetworkFillDescriptorSetup2(ImmutableList.of(SUBNETWORK_NAME));
     ListBoxModel got =
         descriptor.doFillSubnetworkItems(r.jenkins, "", "", PROJECT_ID, CREDENTIALS_ID);
     Assert.assertEquals(0, got.size());
@@ -160,4 +160,14 @@ private DescriptorImpl subnetworkFillDescriptorSetup(List<String> subnetworkName
     DescriptorImpl.setComputeClient(computeClient);
     return new DescriptorImpl();
   }
+
+  private DescriptorImpl subnetworkFillDescriptorSetup2(List<String> subnetworkNames)
+      throws IOException {
+    List<Subnetwork> subnetworks = new ArrayList<>();
+    subnetworkNames.forEach(
+        subnet -> subnetworks.add(new Subnetwork().setName(subnet).setSelfLink(subnet)));
+    ComputeClient computeClient = Mockito.mock(ComputeClient.class);
+    DescriptorImpl.setComputeClient(computeClient);
+    return new DescriptorImpl();
+  }
 }