diff --git a/example/build_with_bazel_module/client.cpp b/example/build_with_bazel_module/client.cpp
index 2ce335073b..0e04dacc8a 100644
--- a/example/build_with_bazel_module/client.cpp
+++ b/example/build_with_bazel_module/client.cpp
@@ -38,7 +38,7 @@ int main(int argc, char* argv[]) {
     // Channel is thread-safe and can be shared by all threads in your program.
     brpc::Channel channel;
 
-    // Initialize the channel, NULL means using default options.
+        // Initialize the channel, nullptr means using default options.
     brpc::ChannelOptions options;
     options.protocol = FLAGS_protocol;
     options.connection_type = FLAGS_connection_type;
@@ -69,9 +69,9 @@ int main(int argc, char* argv[]) {
         // being serialized into protobuf messages.
         cntl.request_attachment().append(FLAGS_attachment);
 
-        // Because `done'(last parameter) is NULL, this function waits until
+        // Because `done'(last parameter) is nullptr, this function waits until
         // the response comes back or error occurs(including timedout).
-        stub.Echo(&cntl, &request, &response, NULL);
+        stub.Echo(&cntl, &request, &response, nullptr);
         if (!cntl.Failed()) {
             LOG(INFO) << "Received response from " << cntl.remote_side()
                 << " to " << cntl.local_side()
diff --git a/example/build_with_bazel_module/server.cpp b/example/build_with_bazel_module/server.cpp
index 54ca096016..289b1afe13 100644
--- a/example/build_with_bazel_module/server.cpp
+++ b/example/build_with_bazel_module/server.cpp
@@ -83,8 +83,6 @@ int main(int argc, char* argv[]) {
 
     // Start the server. 
     brpc::ServerOptions options;
-    options.mutable_ssl_options()->default_cert.certificate = "cert.pem";
-    options.mutable_ssl_options()->default_cert.private_key = "key.pem";
     options.idle_timeout_sec = FLAGS_idle_timeout_s;
     options.max_concurrency = FLAGS_max_concurrency;
     options.internal_port = FLAGS_internal_port;