diff --git a/devel/libgtop2/files/patch-sysdeps_freebsd_netload.c b/devel/libgtop2/files/patch-sysdeps_freebsd_netload.c
index 29ab73bd840f..1f013d220014 100644
--- a/devel/libgtop2/files/patch-sysdeps_freebsd_netload.c
+++ b/devel/libgtop2/files/patch-sysdeps_freebsd_netload.c
@@ -8,6 +8,15 @@
  
      union {
  	struct ifaddr ifa;
+@@ -109,7 +109,7 @@
+ 			  sizeof (ifnet)) != sizeof (ifnet))
+ 		    glibtop_error_io_r (server, "kvm_read (ifnetaddr)");
+ 
+-#if defined(__FreeBSD__) || defined(__bsdi__)
++#if (defined(__FreeBSD__) && (__FreeBSD_version < 501113)) || defined(__bsdi__)
+ 	    if (kvm_read (server->machine.kd, (u_long) ifnet.if_name,
+ 			  tname, 16) != 16)
+ 		    glibtop_error_io_r (server, "kvm_read (if_name)");
 @@ -113,6 +114,9 @@
  	    if (kvm_read (server->machine.kd, (u_long) ifnet.if_name,
  			  tname, 16) != 16)