diff --git a/lerobot/common/envs/aloha/env.py b/lerobot/common/envs/aloha/env.py
index 001b2ba2..6f8fded1 100644
--- a/lerobot/common/envs/aloha/env.py
+++ b/lerobot/common/envs/aloha/env.py
@@ -35,6 +35,8 @@ _has_gym = importlib.util.find_spec("gym") is not None
 
 
 class AlohaEnv(AbstractEnv):
+    _reset_warning_issued = False
+
     def __init__(
         self,
         task,
@@ -58,7 +60,6 @@ class AlohaEnv(AbstractEnv):
             num_prev_obs=num_prev_obs,
             num_prev_action=num_prev_action,
         )
-        self._reset_warning_issued = False
 
     def _make_env(self):
         if not _has_gym:
@@ -121,9 +122,9 @@ class AlohaEnv(AbstractEnv):
         return obs
 
     def _reset(self, tensordict: Optional[TensorDict] = None):
-        if tensordict is not None and not self._reset_warning_issued:
+        if tensordict is not None and not AlohaEnv._reset_warning_issued:
             logging.warning(f"{self.__class__.__name__}._reset ignores the provided tensordict.")
-            self._reset_warning_issued = True
+            AlohaEnv._reset_warning_issued = True
 
         # we need to handle seed iteration, since self._env.reset() rely an internal _seed.
         self._current_seed += 1
diff --git a/lerobot/common/envs/pusht/env.py b/lerobot/common/envs/pusht/env.py
index 6c348cd6..aadf626c 100644
--- a/lerobot/common/envs/pusht/env.py
+++ b/lerobot/common/envs/pusht/env.py
@@ -20,6 +20,8 @@ _has_gym = importlib.util.find_spec("gym") is not None
 
 
 class PushtEnv(AbstractEnv):
+    _reset_warning_issued = False
+
     def __init__(
         self,
         task="pusht",
@@ -43,7 +45,6 @@ class PushtEnv(AbstractEnv):
             num_prev_obs=num_prev_obs,
             num_prev_action=num_prev_action,
         )
-        self._reset_warning_issued = False
 
     def _make_env(self):
         if not _has_gym:
@@ -81,9 +82,9 @@ class PushtEnv(AbstractEnv):
         return obs
 
     def _reset(self, tensordict: Optional[TensorDict] = None):
-        if tensordict is not None and not self._reset_warning_issued:
+        if tensordict is not None and not PushtEnv._reset_warning_issued:
             logging.warning(f"{self.__class__.__name__}._reset ignores the provided tensordict.")
-            self._reset_warning_issued = True
+            PushtEnv._reset_warning_issued = True
 
         # we need to handle seed iteration, since self._env.reset() rely an internal _seed.
         self._current_seed += 1