diff --git a/src/security/sec-rule-relative.cpp b/src/security/sec-rule-relative.cpp
index 8da1bd1..cdfdeac 100644
--- a/src/security/sec-rule-relative.cpp
+++ b/src/security/sec-rule-relative.cpp
@@ -5,6 +5,8 @@
  * See COPYING for copyright and distribution information.
  */
 
+#include "common.hpp"
+
 #include "sec-rule-relative.hpp"
 
 #include "signature-sha256-with-rsa.hpp"