diff --git a/library/train_util.py b/library/train_util.py
index 422dceca..27910dc9 100644
--- a/library/train_util.py
+++ b/library/train_util.py
@@ -4496,6 +4496,15 @@ def get_scheduler_fix(args, optimizer: Optimizer, num_processes: int):
             **lr_scheduler_kwargs,
         )
 
+    # these schedulers do not require `num_decay_steps`
+    if name == SchedulerType.LINEAR or name == SchedulerType.COSINE:
+        return schedule_func(
+            optimizer,
+            num_warmup_steps=num_warmup_steps,
+            num_training_steps=num_training_steps,
+            **lr_scheduler_kwargs,
+        )
+
     # All other schedulers require `num_decay_steps`
     if num_decay_steps is None:
         raise ValueError(f"{name} requires `num_decay_steps`, please provide that argument.")