diff --git a/src/encoding/cryptopp/asn_ext.hpp b/src/encoding/cryptopp/asn_ext.hpp
index b02b3e9..9140ed9 100644
--- a/src/encoding/cryptopp/asn_ext.hpp
+++ b/src/encoding/cryptopp/asn_ext.hpp
@@ -11,7 +11,7 @@
 
 #include <stdexcept>
 #include "../../common.hpp"
-#include <cryptopp/asn.h>
+#include "../../security/cryptopp.hpp"
 
 namespace ndn {