diff --git a/jaxley/channels/lif.py b/jaxley/channels/lif.py
index 1b491a3a..b99f2f4c 100644
--- a/jaxley/channels/lif.py
+++ b/jaxley/channels/lif.py
@@ -2,6 +2,7 @@
 # licensed under the Apache License Version 2.0, see <https://www.apache.org/licenses/>
 
 from typing import Dict, Optional
+from warnings import warn
 
 import jax.numpy as jnp
 
@@ -25,6 +26,8 @@ def __init__(self, name: Optional[str] = None):
         }
         self.current_name = f"{self.name}_i"
 
+        warn("This channel is not differentiable. Consider using SmoothLIF instead.")
+
     def update_states(self, states, dt, v, params):
         prefix = self._name
         # Decrease refractory time