diff --git a/HOWTOHELP b/HOWTOHELP
index 80ee4aa69..7c5311785 100644
--- a/HOWTOHELP
+++ b/HOWTOHELP
@@ -338,11 +338,6 @@ strptime_l(3) (since glibc 2.3.2)
 tmpnam_r(3)	(probably as additional text in tmpnam.3)
 updwtmpx(3)
 
-backtrace(3)
-backtrace_symbols(3)
-backtrace_fd(3)
-    (There are info pages for these functions.  See also
-    page 48 of http://people.redhat.com/~drepper/tut1.ps)
 
 argp_error(3)
 argp_failure(3)