diff --git a/tools/ndncert-ca-server.cpp b/tools/ndncert-ca-server.cpp
index 470aa39..90b26e5 100644
--- a/tools/ndncert-ca-server.cpp
+++ b/tools/ndncert-ca-server.cpp
@@ -148,8 +148,8 @@
   return 0;
 }
 
-}  // namespace ndncert
-}  // namespace ndn
+} // namespace ndncert
+} // namespace ndn
 
 int
 main(int argc, char* argv[])