diff --git a/boards/may_pad/main.py b/boards/may_pad/main.py
index aea3407..ba108de 100644
--- a/boards/may_pad/main.py
+++ b/boards/may_pad/main.py
@@ -1,4 +1,5 @@
 from kb import KMKKeyboard
+
 from kmk.extensions.media_keys import MediaKeys
 from kmk.keys import KC
 from kmk.modules.layers import Layers
diff --git a/kmk/modules/encoder.py b/kmk/modules/encoder.py
index 7175229..494a2a1 100644
--- a/kmk/modules/encoder.py
+++ b/kmk/modules/encoder.py
@@ -132,8 +132,12 @@ class EncoderHandler(Module):
                 gpio_pins = pins[:3]
                 new_encoder = Encoder(*gpio_pins)
                 # In our case, we need to define keybord and encoder_id for callbacks
-                new_encoder.on_move_do = lambda x, bound_idx = idx: self.on_move_do(keyboard, bound_idx, x)
-                new_encoder.on_button_do = lambda x, bound_idx = idx: self.on_button_do(keyboard, bound_idx, x)
+                new_encoder.on_move_do = lambda x, bound_idx=idx: self.on_move_do(
+                    keyboard, bound_idx, x
+                )
+                new_encoder.on_button_do = lambda x, bound_idx=idx: self.on_button_do(
+                    keyboard, bound_idx, x
+                )
                 self.encoders.append(new_encoder)
         return