diff --git a/src/libCom/osi/os/freebsd/osdSock.h b/src/libCom/osi/os/freebsd/osdSock.h
index 0b9e51508..8c270b72a 100644
--- a/src/libCom/osi/os/freebsd/osdSock.h
+++ b/src/libCom/osi/os/freebsd/osdSock.h
@@ -77,7 +77,11 @@ typedef socklen_t osiSocklen_t;
 #   define SHUT_RDWR 2
 #endif
 
-#define ifreq_size(pifreq) (sizeof(pifreq->ifr_name))
+#if BSD4_4
+#   define ifreq_size(pifreq) (pifreq->ifr_addr.sa_len + sizeof(pifreq->ifr_name))
+#else
+#   define ifreq_size(pifreq) sizeof(*pifreq)
+#endif
 
 #endif /*osdSockH*/