diff --git a/temporal-test-server/src/test/java/io/temporal/testserver/functional/DescribeNamespaceTest.java b/temporal-test-server/src/test/java/io/temporal/testserver/functional/DescribeNamespaceTest.java
index af20390cf..8ccc3f8f3 100644
--- a/temporal-test-server/src/test/java/io/temporal/testserver/functional/DescribeNamespaceTest.java
+++ b/temporal-test-server/src/test/java/io/temporal/testserver/functional/DescribeNamespaceTest.java
@@ -21,6 +21,7 @@
 package io.temporal.testserver.functional;
 
 import static org.junit.Assert.*;
+import static org.junit.Assume.assumeFalse;
 
 import io.grpc.Status;
 import io.grpc.StatusRuntimeException;
@@ -51,8 +52,25 @@ public void testDescribeNamespace() {
     assertEquals(
         RegisterTestNamespace.NAMESPACE, describeNamespaceResponse.getNamespaceInfo().getName());
     assertTrue(describeNamespaceResponse.getNamespaceInfo().getId().length() > 0);
-    assertNotNull(describeNamespaceResponse.getNamespaceInfo().getCapabilities());
-    assertTrue(describeNamespaceResponse.getNamespaceInfo().getCapabilities().getEagerWorkflowStart());
+  }
+
+  @Test
+  public void testDescribeNamespaceCapabilities() {
+    assumeFalse(
+        "Real Server doesn't support namespace capabilities yet",
+        SDKTestWorkflowRule.useExternalService);
+
+    DescribeNamespaceResponse describeNamespaceResponse =
+        testWorkflowRule
+            .getWorkflowServiceStubs()
+            .blockingStub()
+            .describeNamespace(
+                DescribeNamespaceRequest.newBuilder()
+                    .setNamespace(RegisterTestNamespace.NAMESPACE)
+                    .build());
+
+    assertTrue(
+        describeNamespaceResponse.getNamespaceInfo().getCapabilities().getEagerWorkflowStart());
     assertTrue(describeNamespaceResponse.getNamespaceInfo().getCapabilities().getSyncUpdate());
     assertTrue(describeNamespaceResponse.getNamespaceInfo().getCapabilities().getAsyncUpdate());
   }