diff --git a/include/grpc++/health_check_service_interface.h b/include/grpc++/health_check_service_interface.h
index c1b43199a60769349cc77de27354a5180cf23690..bdc4ed76efa53f98adcc433b63f1eea9f59409d9 100644
--- a/include/grpc++/health_check_service_interface.h
+++ b/include/grpc++/health_check_service_interface.h
@@ -47,7 +47,7 @@ class HealthCheckServiceInterface {
  public:
   virtual ~HealthCheckServiceInterface() {}
 
-  /// Set or change the serving status of the given service_name.
+  /// Set or change the serving status of the given \a service_name.
   virtual void SetServingStatus(const grpc::string& service_name,
                                 bool serving) = 0;
   /// Apply to all registered service names.