diff --git a/libc/include/sys/select.h b/libc/include/sys/select.h
index 79fc28d..65571eb 100644
--- a/libc/include/sys/select.h
+++ b/libc/include/sys/select.h
@@ -101,31 +101,37 @@
 
 /**
  * [select(2)](http://man7.org/linux/man-pages/man2/select.2.html) waits on a
- * set of file descriptors. Use poll() instead.
+ * set of file descriptors.
+ *
+ * Use poll() instead.
  *
  * Returns the number of ready file descriptors on success, 0 for timeout,
  * and returns -1 and sets `errno` on failure.
  */
-int select(int __fd_count, fd_set* __read_fds, fd_set* __write_fds, fd_set* __exception_fds, struct timeval* __timeout);
+int select(int __max_fd_plus_one, fd_set* __read_fds, fd_set* __write_fds, fd_set* __exception_fds, struct timeval* __timeout);
 
 /**
  * [pselect(2)](http://man7.org/linux/man-pages/man2/select.2.html) waits on a
- * set of file descriptors. Use ppoll() instead.
+ * set of file descriptors.
+ *
+ * Use ppoll() instead.
  *
  * Returns the number of ready file descriptors on success, 0 for timeout,
  * and returns -1 and sets `errno` on failure.
  */
-int pselect(int __fd_count, fd_set* __read_fds, fd_set* __write_fds, fd_set* __exception_fds, const struct timespec* __timeout, const sigset_t* __mask);
+int pselect(int __max_fd_plus_one, fd_set* __read_fds, fd_set* __write_fds, fd_set* __exception_fds, const struct timespec* __timeout, const sigset_t* __mask);
 
 /**
  * [pselect64(2)](http://man7.org/linux/man-pages/man2/select.2.html) waits on a
- * set of file descriptors. Use ppoll64() instead.
+ * set of file descriptors.
+ *
+ * Use ppoll64() instead.
  *
  * Returns the number of ready file descriptors on success, 0 for timeout,
  * and returns -1 and sets `errno` on failure.
  *
  * Available since API level 28.
  */
-int pselect64(int __fd_count, fd_set* __read_fds, fd_set* __write_fds, fd_set* __exception_fds, const struct timespec* __timeout, const sigset64_t* __mask) __INTRODUCED_IN(28);
+int pselect64(int __max_fd_plus_one, fd_set* __read_fds, fd_set* __write_fds, fd_set* __exception_fds, const struct timespec* __timeout, const sigset64_t* __mask) __INTRODUCED_IN(28);
 
 __END_DECLS