diff --git a/src/ca-state.hpp b/src/ca-state.hpp
index 7fc7de6..d74e680 100644
--- a/src/ca-state.hpp
+++ b/src/ca-state.hpp
@@ -72,7 +72,7 @@
 std::ostream&
 operator<<(std::ostream& os, const CaState& request);
 
-}  // namespace ndncert
-}  // namespace ndn
+} // namespace ndncert
+} // namespace ndn
 
-#endif  // NDNCERT_CA_STATE_HPP
+#endif // NDNCERT_CA_STATE_HPP