diff --git a/src/test/java/com/google/api/generator/gapic/composer/goldens/GrpcTestingStub.golden b/src/test/java/com/google/api/generator/gapic/composer/goldens/GrpcTestingStub.golden
index b1d8da085a..ed6f22313a 100644
--- a/src/test/java/com/google/api/generator/gapic/composer/goldens/GrpcTestingStub.golden
+++ b/src/test/java/com/google/api/generator/gapic/composer/goldens/GrpcTestingStub.golden
@@ -277,6 +277,7 @@ public class GrpcTestingStub extends TestingStub {
                     params.put("name", String.valueOf(request.getName()));
                     params.put(
                         "test_to_verify.name", String.valueOf(request.getTestToVerify().getName()));
+                    params.put("type", String.valueOf(request.getType()));
                     return params.build();
                   }
                 })
diff --git a/src/test/java/com/google/api/generator/gapic/composer/goldens/TestingClientTest.golden b/src/test/java/com/google/api/generator/gapic/composer/goldens/TestingClientTest.golden
index f0dc05e18a..5c6dfb6a0e 100644
--- a/src/test/java/com/google/api/generator/gapic/composer/goldens/TestingClientTest.golden
+++ b/src/test/java/com/google/api/generator/gapic/composer/goldens/TestingClientTest.golden
@@ -481,6 +481,7 @@ public class TestingClientTest {
     Assert.assertEquals(request.getAnswersList(), actualRequest.getAnswersList());
     Assert.assertEquals(request.getFoo(), actualRequest.getFoo());
     Assert.assertEquals(request.getTestToVerify(), actualRequest.getTestToVerify());
+    Assert.assertEquals(request.getType(), actualRequest.getType());
     Assert.assertTrue(
         channelProvider.isHeaderSent(
             ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
diff --git a/src/test/java/com/google/api/generator/gapic/protoparser/HttpRuleParserTest.java b/src/test/java/com/google/api/generator/gapic/protoparser/HttpRuleParserTest.java
index f238f3e7cd..59a0775b69 100644
--- a/src/test/java/com/google/api/generator/gapic/protoparser/HttpRuleParserTest.java
+++ b/src/test/java/com/google/api/generator/gapic/protoparser/HttpRuleParserTest.java
@@ -70,7 +70,7 @@ public void parseHttpAnnotation_multipleBindings() {
         HttpRuleParser.parseHttpBindings(rpcMethod, inputMessage, messages);
     assertTrue(httpBindingsOpt.isPresent());
     assertThat(httpBindingsOpt.get())
-        .containsExactly("answer", "foo", "name", "test_to_verify.name");
+        .containsExactly("answer", "foo", "name", "test_to_verify.name", "type");
   }
 
   @Test
diff --git a/src/test/java/com/google/api/generator/gapic/testdata/testing.proto b/src/test/java/com/google/api/generator/gapic/testdata/testing.proto
index 28432bffaa..490e1d17cc 100644
--- a/src/test/java/com/google/api/generator/gapic/testdata/testing.proto
+++ b/src/test/java/com/google/api/generator/gapic/testdata/testing.proto
@@ -120,6 +120,8 @@ service Testing {
         post: "/v1beta1/{test_to_verify.name=sessions/*/tests/*}:check"
         body: "*"
       }
+      // Test enums in HTTP fields.
+      additional_bindings { post: "/v1beta1/{type}:check" body: "*" }
     };
   }
 }
@@ -410,6 +412,9 @@ message VerifyTestRequest {
   string foo = 4;
 
   Test test_to_verify = 5;
+
+  // For testing enums in HTTP fields.
+  Issue.Type type = 6;
 }
 
 message VerifyTestResponse {