diff --git a/src/security/certificate-extension.cpp b/src/security/certificate-extension.cpp
index f876823..e3ceff6 100644
--- a/src/security/certificate-extension.cpp
+++ b/src/security/certificate-extension.cpp
@@ -6,7 +6,9 @@
  * See COPYING for copyright and distribution information.
  */
 
-#include "security/certificate-extension.hpp"
+#include "common.hpp"
+
+#include "certificate-extension.hpp"
 #include <cryptopp/asn.h>
 
 using namespace std;