diff --git a/include/grpcpp/server_builder.h b/include/grpcpp/server_builder.h
index 5ae0fb161d6..0a5348117eb 100644
--- a/include/grpcpp/server_builder.h
+++ b/include/grpcpp/server_builder.h
@@ -230,7 +230,7 @@ class ServerBuilder {
 
   std::vector<std::reference_wrapper<NamedService>> services() {
     std::vector<std::reference_wrapper<NamedService>> service_refs;
-    for (auto &ptr : services_) {
+    for (auto& ptr : services_) {
       service_refs.push_back(std::ref(*ptr));
     }
     return service_refs;
@@ -238,13 +238,12 @@ class ServerBuilder {
 
   std::vector<std::reference_wrapper<ServerBuilderOption>> options() {
     std::vector<std::reference_wrapper<ServerBuilderOption>> option_refs;
-    for (auto &ptr : options_) {
+    for (auto& ptr : options_) {
       option_refs.push_back(std::ref(*ptr));
     }
     return option_refs;
   }
 
-
  private:
   friend class ::grpc::testing::ServerBuilderPluginTest;