diff --git a/bayesflow/trainers.py b/bayesflow/trainers.py
index f9839ab24..7b71b1990 100644
--- a/bayesflow/trainers.py
+++ b/bayesflow/trainers.py
@@ -152,6 +152,8 @@ def __init__(self, amortizer, generative_model=None, configurator=None, checkpoi
         self.replay_buffer = None
         self.optimizer = None
         self.default_lr = default_lr
+        # Currently unused attribute
+        self.lr_adjuster = None
 
         # Checkpoint and helper classes settings
         self.max_to_keep = max_to_keep