diff --git a/lerobot/common/teleoperators/homonculus/homonculus_arm.py b/lerobot/common/teleoperators/homonculus/homonculus_arm.py
index 0d4571f2..b4fc37e8 100644
--- a/lerobot/common/teleoperators/homonculus/homonculus_arm.py
+++ b/lerobot/common/teleoperators/homonculus/homonculus_arm.py
@@ -64,10 +64,10 @@ class HomonculusArm(Teleoperator):
         self.joints_buffer = {joint: deque(maxlen=self.buffer_size) for joint in self.joints}
 
         # Last read dictionary
-        self.last_d = {joint: 100 for joint in self.joints}
+        self.last_d = dict.fromkeys(self.joints, 100)
 
         # For adaptive EMA, we store a "previous smoothed" state per joint
-        self.adaptive_ema_state = {joint: None for joint in self.joints}
+        self.adaptive_ema_state = dict.fromkeys(self.joints)
         self.kalman_state = {joint: {"x": None, "P": None} for joint in self.joints}
 
         self.calibration = None
diff --git a/lerobot/common/teleoperators/homonculus/homonculus_glove.py b/lerobot/common/teleoperators/homonculus/homonculus_glove.py
index 2ba2f712..fb78fb61 100644
--- a/lerobot/common/teleoperators/homonculus/homonculus_glove.py
+++ b/lerobot/common/teleoperators/homonculus/homonculus_glove.py
@@ -73,7 +73,7 @@ class HomonculusGlove(Teleoperator):
         # Initialize a buffer (deque) for each joint
         self.joints_buffer = {joint: deque(maxlen=self.buffer_size) for joint in self.joints}
         # Last read dictionary
-        self.last_d = {joint: 100 for joint in self.joints}
+        self.last_d = dict.fromkeys(self.joints, 100)
 
         self.calibration = None
         self.thread = threading.Thread(target=self.async_read, daemon=True)