diff --git a/src/protocol-detail/error.hpp b/src/protocol-detail/error.hpp
index bfda70c..ae3a027 100644
--- a/src/protocol-detail/error.hpp
+++ b/src/protocol-detail/error.hpp
@@ -26,7 +26,8 @@
 namespace ndn {
 namespace ndncert {
 
-class ErrorTLV {
+class ErrorTLV
+{
 public:
   /**
    * Encode error information into a Data content TLV