diff --git a/man3/undocumented.3 b/man3/undocumented.3
index 4652b91eb..af5e936c5 100644
--- a/man3/undocumented.3
+++ b/man3/undocumented.3
@@ -45,9 +45,6 @@ for inclusion in the next man page release.
 .BR authdes_create (3),
 .BR authdes_getucred (3),
 .BR authdes_pk_create (3),
-.BR backtrace (3),
-.BR backtrace_symbols (3),
-.BR backtrace_symbols_fd (3),
 .\" .BR chflags (3),
 .BR clntunix_create (3),
 .BR creat64 (3),