diff --git a/nfq/checksum.h b/nfq/checksum.h
index a10c5df..c89fcbe 100644
--- a/nfq/checksum.h
+++ b/nfq/checksum.h
@@ -1,5 +1,7 @@
 #pragma once
 
+#define __FAVOR_BSD
+
 #include <stddef.h>
 #include <stdint.h>
 #include <sys/types.h>
diff --git a/nfq/conntrack.h b/nfq/conntrack.h
index 9718a49..a477658 100644
--- a/nfq/conntrack.h
+++ b/nfq/conntrack.h
@@ -1,5 +1,7 @@
 #pragma once
 
+#define __FAVOR_BSD
+
 // this conntrack is not bullet-proof
 // its designed to satisfy dpi desync needs only
 
diff --git a/nfq/darkmagic.h b/nfq/darkmagic.h
index d2ba973..2715765 100644
--- a/nfq/darkmagic.h
+++ b/nfq/darkmagic.h
@@ -1,5 +1,7 @@
 #pragma once
 
+#define __FAVOR_BSD
+
 #include <stdint.h>
 #include <stdbool.h>
 #include <sys/types.h>
diff --git a/nfq/desync.h b/nfq/desync.h
index 5eb8137..7c26237 100644
--- a/nfq/desync.h
+++ b/nfq/desync.h
@@ -1,5 +1,7 @@
 #pragma once
 
+#define __FAVOR_BSD
+
 #include "darkmagic.h"
 
 #include <stdint.h>