diff --git a/tools/ndnsec/util.cpp b/tools/ndnsec/util.cpp
index f5069e7..5e5c341 100644
--- a/tools/ndnsec/util.cpp
+++ b/tools/ndnsec/util.cpp
@@ -21,7 +21,7 @@
 
 #include "util.hpp"
 
-#include "ndn-cxx/security/detail/openssl.hpp"
+#include "ndn-cxx/security/impl/openssl.hpp"
 
 namespace ndn {
 namespace ndnsec {