diff --git a/src/management/nrd-prefix-reg-options.hpp b/src/management/nrd-prefix-reg-options.hpp
index ea8ca4d..8f2a0e5 100644
--- a/src/management/nrd-prefix-reg-options.hpp
+++ b/src/management/nrd-prefix-reg-options.hpp
@@ -25,7 +25,8 @@
  * @see http://redmine.named-data.net/projects/nrd/wiki/NRD_Prefix_Registration_protocol
  * @deprecated use NFD RIB Management
  */
-class PrefixRegOptions {
+class PrefixRegOptions
+{
 public:
   class Error : public Tlv::Error
   {