diff --git a/test/cpp/end2end/end2end_test.cc b/test/cpp/end2end/end2end_test.cc
index 9017641e30e..76271c3e1dd 100644
--- a/test/cpp/end2end/end2end_test.cc
+++ b/test/cpp/end2end/end2end_test.cc
@@ -191,7 +191,8 @@ class End2endTest : public ::testing::Test {
     server_address_ << "localhost:" << port;
     // Setup server
     ServerBuilder builder;
-    builder.AddListeningPort(server_address_.str(), FakeServerCredentials());
+    builder.AddListeningPort(server_address_.str(),
+                             FakeTransportSecurityServerCredentials());
     builder.RegisterService(&service_);
     builder.SetMaxMessageSize(
         kMaxMessageSize_);  // For testing max message size.
@@ -203,8 +204,9 @@ class End2endTest : public ::testing::Test {
   void TearDown() GRPC_OVERRIDE { server_->Shutdown(); }
 
   void ResetStub() {
-    std::shared_ptr<ChannelInterface> channel = CreateChannel(
-        server_address_.str(), FakeCredentials(), ChannelArguments());
+    std::shared_ptr<ChannelInterface> channel =
+        CreateChannel(server_address_.str(), FakeTransportSecurityCredentials(),
+                      ChannelArguments());
     stub_ = std::move(grpc::cpp::test::util::TestService::NewStub(channel));
   }
 
@@ -415,8 +417,9 @@ TEST_F(End2endTest, BidiStream) {
 // Talk to the two services with the same name but different package names.
 // The two stubs are created on the same channel.
 TEST_F(End2endTest, DiffPackageServices) {
-  std::shared_ptr<ChannelInterface> channel = CreateChannel(
-      server_address_.str(), FakeCredentials(), ChannelArguments());
+  std::shared_ptr<ChannelInterface> channel =
+      CreateChannel(server_address_.str(), FakeTransportSecurityCredentials(),
+                    ChannelArguments());
 
   EchoRequest request;
   EchoResponse response;
@@ -671,6 +674,12 @@ TEST_F(End2endTest, OverridePerCallCredentials) {
   EXPECT_TRUE(MetadataContains(context.GetServerTrailingMetadata(),
                                GRPC_IAM_AUTHORITY_SELECTOR_METADATA_KEY,
                                "fake_selector2"));
+  EXPECT_FALSE(MetadataContains(context.GetServerTrailingMetadata(),
+                                GRPC_IAM_AUTHORIZATION_TOKEN_METADATA_KEY,
+                                "fake_token1"));
+  EXPECT_FALSE(MetadataContains(context.GetServerTrailingMetadata(),
+                                GRPC_IAM_AUTHORITY_SELECTOR_METADATA_KEY,
+                                "fake_selector1"));
   EXPECT_EQ(request.message(), response.message());
   EXPECT_TRUE(s.IsOk());
 }
diff --git a/test/cpp/util/fake_credentials.cc b/test/cpp/util/fake_credentials.cc
index 6b89e2fc968..f5b83b8159f 100644
--- a/test/cpp/util/fake_credentials.cc
+++ b/test/cpp/util/fake_credentials.cc
@@ -36,39 +36,18 @@
 #include <grpc++/credentials.h>
 #include <grpc++/server_credentials.h>
 #include "src/cpp/client/channel.h"
+#include "src/cpp/client/secure_credentials.h"
 #include "src/cpp/server/secure_server_credentials.h"
 
 namespace grpc {
 namespace testing {
 
-namespace {
-class FakeCredentialsImpl GRPC_FINAL : public Credentials {
- public:
-  FakeCredentialsImpl()
-      : c_creds_(grpc_fake_transport_security_credentials_create()) {}
-  ~FakeCredentialsImpl() { grpc_credentials_release(c_creds_); }
-  SecureCredentials* AsSecureCredentials() GRPC_OVERRIDE { return nullptr; }
-  std::shared_ptr<ChannelInterface> CreateChannel(
-      const grpc::string& target, const ChannelArguments& args) GRPC_OVERRIDE {
-    grpc_channel_args channel_args;
-    args.SetChannelArgs(&channel_args);
-    return std::shared_ptr<ChannelInterface>(new Channel(
-        target,
-        grpc_secure_channel_create(c_creds_, target.c_str(), &channel_args)));
-  }
-  bool ApplyToCall(grpc_call* call) GRPC_OVERRIDE { return false; }
-
- private:
-  grpc_credentials* const c_creds_;
-};
-
-}  // namespace
-
-std::shared_ptr<Credentials> FakeCredentials() {
-  return std::shared_ptr<Credentials>(new FakeCredentialsImpl());
+std::shared_ptr<Credentials> FakeTransportSecurityCredentials() {
+  grpc_credentials* c_creds = grpc_fake_transport_security_credentials_create();
+  return std::shared_ptr<Credentials>(new SecureCredentials(c_creds));
 }
 
-std::shared_ptr<ServerCredentials> FakeServerCredentials() {
+std::shared_ptr<ServerCredentials> FakeTransportSecurityServerCredentials() {
   grpc_server_credentials* c_creds =
       grpc_fake_transport_security_server_credentials_create();
   return std::shared_ptr<ServerCredentials>(
diff --git a/test/cpp/util/fake_credentials.h b/test/cpp/util/fake_credentials.h
index 7e134ceef47..e1ba7bb9e4a 100644
--- a/test/cpp/util/fake_credentials.h
+++ b/test/cpp/util/fake_credentials.h
@@ -42,8 +42,8 @@ class ServerCredentials;
 
 namespace testing {
 
-std::shared_ptr<Credentials> FakeCredentials();
-std::shared_ptr<ServerCredentials> FakeServerCredentials();
+std::shared_ptr<Credentials> FakeTransportSecurityCredentials();
+std::shared_ptr<ServerCredentials> FakeTransportSecurityServerCredentials();
 
 }  // namespace testing
 }  // namespace grpc