diff --git a/sysdeps/freebsd/proctime.c b/sysdeps/freebsd/proctime.c
index 540717d4..5af034e3 100644
--- a/sysdeps/freebsd/proctime.c
+++ b/sysdeps/freebsd/proctime.c
@@ -190,7 +190,7 @@ glibtop_get_proc_time_p (glibtop *server, glibtop_proc_time *buf,
 
 	buf->start_time = tv2sec (pstats.p_start);
 
-	buf->flags = _glibtop_sysdeps_proc_time_user;
+	buf->flags |= _glibtop_sysdeps_proc_time_user;
 #else
 	glibtop_suid_enter (server);