diff --git a/Hardware-API.md b/Hardware-API.md
index 8e423f2..86ae9fb 100644
--- a/Hardware-API.md
+++ b/Hardware-API.md
@@ -395,11 +395,6 @@ Wake reason:
 - `machine.PIN_WAKE`
 - `machine.TIMER_WAKE`
 
-# sys module additions
-
-The sys module has uPy specific functions:
-- `sys.dup_stdio([stream_obj])` get or set duplication of global stdio, so that REPL can be redirected to UART or other (note: could allow to duplicate to multiple stream objs but that's arguably overkill and could anyway be done in Python by making a stream multiplexer)
-
 # time module additions
 
 The time module has uPy specific functions:
@@ -417,6 +412,7 @@ The os module has uPy specific functions:
 - `os.mount(block_dev, mount_point, *, readonly)`
 - `os.umount(mount_point)`
 - `os.mkfs(device or path, *, options...)`
+- `os.dupterm([stream_obj])` get or set duplication of controlling terminal, so that REPL can be redirected to UART or other (note: could allow to duplicate to multiple stream objs but that's arguably overkill and could anyway be done in Python by making a stream multiplexer)
 
 # micropython module