diff --git a/lerobot/common/robot_devices/control_utils.py b/lerobot/common/robot_devices/control_utils.py
index e2131a6a8..88fe97ea8 100644
--- a/lerobot/common/robot_devices/control_utils.py
+++ b/lerobot/common/robot_devices/control_utils.py
@@ -109,7 +109,7 @@ def predict_action(observation, policy, device, use_amp):
     ):
         # Convert to pytorch format: channel first and float32 in [0,1] with batch dimension
         for name in observation:
-            if isinstance(observation[name], list):
+            if not isinstance(observation[name], torch.Tensor):
                 continue  # VLA-like and multirobot policies include textual inputs in the observation
 
             if "image" in name: