diff --git a/lib/libc/rpc/svc_dg.c b/lib/libc/rpc/svc_dg.c
index 54dbb0956a11..c7e0726270b7 100644
--- a/lib/libc/rpc/svc_dg.c
+++ b/lib/libc/rpc/svc_dg.c
@@ -68,7 +68,7 @@ __FBSDID("$FreeBSD$");
 #include "rpc_com.h"
 #include "mt_misc.h"
 
-#define	su_data(xprt)	((struct svc_dg_data *)(xprt->xp_p2))
+#define	su_data(xprt)	((struct svc_dg_data *)((xprt)->xp_p2))
 #define	rpc_buffer(xprt) ((xprt)->xp_p1)
 
 #ifndef MAX
diff --git a/usr.sbin/ypserv/yp_svc_udp.c b/usr.sbin/ypserv/yp_svc_udp.c
index c865c01d9b7e..288bd28423b1 100644
--- a/usr.sbin/ypserv/yp_svc_udp.c
+++ b/usr.sbin/ypserv/yp_svc_udp.c
@@ -39,7 +39,7 @@ __FBSDID("$FreeBSD$");
 #include <rpc/svc_dg.h>
 #include "yp_extern.h"
 
-#define su_data(xprt)	((struct svc_dg_data *)(xprt->xp_p2))
+#define	su_data(xprt)	((struct svc_dg_data *)((xprt)->xp_p2))
 
 /*
  * We need to be able to manually set the transaction ID in the