diff --git a/src/protocol-detail/error.cpp b/src/protocol-detail/error.cpp
index dabfa6a..79dc535 100644
--- a/src/protocol-detail/error.cpp
+++ b/src/protocol-detail/error.cpp
@@ -44,5 +44,5 @@
   return std::make_tuple(error, readString(block.get(tlv_error_info)));
 }
 
-}  // namespace ndncert
-}  // namespace ndn
+} // namespace ndncert
+} // namespace ndn