diff --git a/src/libs/compat/freebsd_network/compat/sys/mbuf.h b/src/libs/compat/freebsd_network/compat/sys/mbuf.h
index f26227cbc6..da90a86f8c 100644
--- a/src/libs/compat/freebsd_network/compat/sys/mbuf.h
+++ b/src/libs/compat/freebsd_network/compat/sys/mbuf.h
@@ -11,7 +11,7 @@
 
 
 #define MLEN		((int)(MSIZE - sizeof(struct m_hdr)))
-#define MHLEN		((int)(MSIZE - sizeof(struct pkthdr)))
+#define MHLEN		((int)(MLEN - sizeof(struct pkthdr)))
 
 #define MINCLSIZE	(MHLEN + 1)