--- coregrind/m_syswrap/priv_syswrap-openbsd.h.orig
+++ coregrind/m_syswrap/priv_syswrap-openbsd.h
@@ -50,7 +50,7 @@
 DECL_TEMPLATE(openbsd, sys_open);
 DECL_TEMPLATE(openbsd, sys_close);
 DECL_TEMPLATE(openbsd, sys_getentropy);
-DECL_TEMPLATE(openbsd, sys___tfork);
+DECL_TEMPLATE(openbsd, sys___tfork_thread);
 DECL_TEMPLATE(openbsd, sys_link);
 DECL_TEMPLATE(openbsd, sys_unlink);
 DECL_TEMPLATE(openbsd, sys_wait4);
@@ -144,6 +144,7 @@
 DECL_TEMPLATE(openbsd, sys_pledge);
 DECL_TEMPLATE(openbsd, sys_ppoll);
 DECL_TEMPLATE(openbsd, sys_pselect);
+DECL_TEMPLATE(openbsd, sys_unveil);
 DECL_TEMPLATE(openbsd, sys_sigsuspend);
 DECL_TEMPLATE(openbsd, sys_gettimeofday);
 DECL_TEMPLATE(openbsd, sys_getrusage);
