diff --git a/Modules/_posixsubprocess.c b/Modules/_posixsubprocess.c
index daec4ad708dea4..b5326314677d62 100644
--- a/Modules/_posixsubprocess.c
+++ b/Modules/_posixsubprocess.c
@@ -628,7 +628,7 @@ reset_signal_handlers(const sigset_t *child_sigmask)
  * (v)fork to set things up and call exec().
  *
  * All of the code in this function must only use async-signal-safe functions,
- * listed at `man 7 signal` or
+ * listed at `man 7 signal-safety` or
  * http://www.opengroup.org/onlinepubs/009695399/functions/xsh_chap02_04.html.
  *
  * This restriction is documented at
diff --git a/Modules/signalmodule.c b/Modules/signalmodule.c
index e279a2a0885fc0..3c7bea5d0c13d0 100644
--- a/Modules/signalmodule.c
+++ b/Modules/signalmodule.c
@@ -1933,7 +1933,7 @@ signal_install_handlers(void)
 /* Restore signals that the interpreter has called SIG_IGN on to SIG_DFL.
  *
  * All of the code in this function must only use async-signal-safe functions,
- * listed at `man 7 signal` or
+ * listed at `man 7 signal-safety` or
  * http://www.opengroup.org/onlinepubs/009695399/functions/xsh_chap02_04.html.
  *
  * If this function is updated, update also _posix_spawn() of subprocess.py.
diff --git a/Python/pylifecycle.c b/Python/pylifecycle.c
index c79fe7a09cad66..01fd36e52fc11e 100644
--- a/Python/pylifecycle.c
+++ b/Python/pylifecycle.c
@@ -3599,7 +3599,7 @@ PyOS_getsig(int sig)
 
 /*
  * All of the code in this function must only use async-signal-safe functions,
- * listed at `man 7 signal` or
+ * listed at `man 7 signal-safety` or
  * http://www.opengroup.org/onlinepubs/009695399/functions/xsh_chap02_04.html.
  */
 PyOS_sighandler_t