--- Libc/Libc-262/pthreads/pthread.3
+++ Libc/Libc-498/pthreads/pthread.3
@@ -107,6 +107,12 @@
 .Fn pthread_self void
 .Xc
 Returns the thread ID of the calling thread.
+.It Xo
+.Ft int 
+.Fn pthread_atfork "void (*prepare)(void)" "void (*parent)(void)" "void (*child)(void)"
+.Xc
+Registers handlers to be called before and after
+.Fn fork
 .El
 .Sh ATTRIBUTE OBJECT ROUTINES
 .Bl -tag -width Er
@@ -376,8 +382,9 @@
 .El
 .Sh INSTALLATION
 The default system libraries include
-.Nm
-funcitons. No additional libraries or CFLAGS are necessary to use this API.
+.Nm pthread
+functions.
+No additional libraries or CFLAGS are necessary to use this API.
 .Sh SEE ALSO
 .Xr pthread_cleanup_pop 3 ,
 .Xr pthread_cleanup_push 3 ,
@@ -400,15 +407,15 @@
 .Xr pthread_mutex_trylock 3 ,
 .Xr pthread_mutex_unlock 3 ,
 .Xr pthread_once 3 ,
-.Xr pthread_rwlockattr_destroy 3 ,
-.Xr pthread_rwlockattr_getpshared 3 ,
-.Xr pthread_rwlockattr_init 3 ,
-.Xr pthread_rwlockattr_setpshared 3 ,
 .Xr pthread_rwlock_destroy 3 ,
 .Xr pthread_rwlock_init 3 ,
 .Xr pthread_rwlock_rdlock 3 ,
 .Xr pthread_rwlock_unlock 3 ,
 .Xr pthread_rwlock_wrlock 3 ,
+.Xr pthread_rwlockattr_destroy 3 ,
+.Xr pthread_rwlockattr_getpshared 3 ,
+.Xr pthread_rwlockattr_init 3 ,
+.Xr pthread_rwlockattr_setpshared 3 ,
 .Xr pthread_self 3 ,
 .Xr pthread_setspecific 3
 .Sh STANDARDS