diff --git a/src/common/Cryptography/RSA.h b/src/common/Cryptography/RSA.h
index a55751bfd7c..1eac7c7c06e 100644
--- a/src/common/Cryptography/RSA.h
+++ b/src/common/Cryptography/RSA.h
@@ -15,6 +15,7 @@
  * with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include "Define.h"
 #include <openssl/rsa.h>
 #include <type_traits>