diff --git a/gcloud-java-dns/src/main/java/com/google/gcloud/dns/testing/LocalDnsHelper.java b/gcloud-java-dns/src/main/java/com/google/gcloud/dns/testing/LocalDnsHelper.java
index 4eca683f1a08..48df7bc20f50 100644
--- a/gcloud-java-dns/src/main/java/com/google/gcloud/dns/testing/LocalDnsHelper.java
+++ b/gcloud-java-dns/src/main/java/com/google/gcloud/dns/testing/LocalDnsHelper.java
@@ -119,6 +119,7 @@ public class LocalDnsHelper {
   private long delayChange;
   private final HttpServer server;
   private final int port;
+  private String projectId;
 
   /**
    * For matching URLs to operations.
@@ -357,8 +358,9 @@ private Response handleZoneCreate(HttpExchange exchange, String projectId, Strin
     }
   }
 
-  private LocalDnsHelper(long delay) {
+  private LocalDnsHelper(String projectId, long delay) {
     this.delayChange = delay;
+    this.projectId = projectId;
     try {
       server = HttpServer.create(new InetSocketAddress(0), 0);
       port = server.getAddress().getPort();
@@ -383,15 +385,15 @@ ConcurrentSkipListMap<String, ProjectContainer> projects() {
    *
    * @param delay delay for processing changes in ms or 0 for synchronous processing
    */
-  public static LocalDnsHelper create(Long delay) {
-    return new LocalDnsHelper(delay);
+  public static LocalDnsHelper create(String projectId, Long delay) {
+    return new LocalDnsHelper(projectId, delay);
   }
 
   /**
    * Returns a {@link DnsOptions} instance that sets the host to use the mock server.
    */
   public DnsOptions options() {
-    return DnsOptions.builder().host("http://localhost:" + port).build();
+    return DnsOptions.builder().projectId(projectId).host("http://localhost:" + port).build();
   }
 
   /**
diff --git a/gcloud-java-dns/src/test/java/com/google/gcloud/dns/testing/LocalDnsHelperTest.java b/gcloud-java-dns/src/test/java/com/google/gcloud/dns/testing/LocalDnsHelperTest.java
index 489b935d7e50..d8e77605173f 100644
--- a/gcloud-java-dns/src/test/java/com/google/gcloud/dns/testing/LocalDnsHelperTest.java
+++ b/gcloud-java-dns/src/test/java/com/google/gcloud/dns/testing/LocalDnsHelperTest.java
@@ -32,6 +32,7 @@
 import com.google.common.collect.ImmutableMap;
 import com.google.common.collect.Lists;
 import com.google.gcloud.dns.DnsException;
+import com.google.gcloud.dns.DnsOptions;
 import com.google.gcloud.spi.DefaultDnsRpc;
 import com.google.gcloud.spi.DnsRpc;
 
@@ -64,10 +65,11 @@ public class LocalDnsHelperTest {
   private static final Change CHANGE2 = new Change();
   private static final Change CHANGE_KEEP = new Change();
   private static final Change CHANGE_COMPLEX = new Change();
-  private static final LocalDnsHelper LOCAL_DNS_HELPER = LocalDnsHelper.create(0L); // synchronous
+  private static final String REAL_PROJECT_ID = "someprojectid";
+  private static final LocalDnsHelper LOCAL_DNS_HELPER = LocalDnsHelper.create(REAL_PROJECT_ID, 0L);
   private static final Map<DnsRpc.Option, ?> EMPTY_RPC_OPTIONS = ImmutableMap.of();
-  private static final DnsRpc RPC = new DefaultDnsRpc(LOCAL_DNS_HELPER.options());
-  private static final String REAL_PROJECT_ID = LOCAL_DNS_HELPER.options().projectId();
+  private static final DnsRpc RPC = new DefaultDnsRpc(LOCAL_DNS_HELPER.options().toBuilder()
+      .projectId(REAL_PROJECT_ID).build());
   private Map<String, Object> optionsMap;
 
   @BeforeClass
@@ -396,9 +398,10 @@ public void testCreateAndApplyChange() {
 
   @Test
   public void testCreateAndApplyChangeWithThreads() {
-    LocalDnsHelper localDnsThreaded = LocalDnsHelper.create(50L);
+    LocalDnsHelper localDnsThreaded = LocalDnsHelper.create(REAL_PROJECT_ID, 50L);
     localDnsThreaded.start();
-    DnsRpc rpc = new DefaultDnsRpc(localDnsThreaded.options());
+    DnsRpc rpc = new DefaultDnsRpc(localDnsThreaded.options().toBuilder()
+        .projectId(REAL_PROJECT_ID).build());
     executeCreateAndApplyChangeTest(rpc);
     localDnsThreaded.stop();
   }