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-rw-r--r--klippy/extras/buttons.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/klippy/extras/buttons.py b/klippy/extras/buttons.py
index 8c5c2bd0..e0d3ee36 100644
--- a/klippy/extras/buttons.py
+++ b/klippy/extras/buttons.py
@@ -46,7 +46,7 @@ class MCU_buttons:
def __init__(self, printer, mcu):
self.reactor = printer.get_reactor()
self.mcu = mcu
- mcu.add_config_object(self)
+ self.mcu.register_config_callback(self.build_config)
self.pin_list = []
self.callbacks = []
self.invert = self.last_button = 0