diff --git a/tensordict/nn/distributions/discrete.py b/tensordict/nn/distributions/discrete.py
index 81db384dc..78218d4ee 100644
--- a/tensordict/nn/distributions/discrete.py
+++ b/tensordict/nn/distributions/discrete.py
@@ -64,7 +64,7 @@ def mode(self) -> torch.Tensor:
         else:
             return (self.probs == self.probs.max(-1, True)[0]).to(torch.long)
 
-    determnistic_sample = mode
+    deterministic_sample = mode
 
     def sample(
         self,