diff --git a/arkindex_worker/worker/training.py b/arkindex_worker/worker/training.py
index 2d2aae6c3176f4ab8292e901e5176ff435ca8e2c..46b369b1445f8d76849d737fc7bcddabc0d5cdd7 100644
--- a/arkindex_worker/worker/training.py
+++ b/arkindex_worker/worker/training.py
@@ -83,6 +83,9 @@ class TrainingMixin:
 
     @property
     def is_finetuning(self) -> bool:
+        """
+        Whether or not this worker is fine-tuning an existing model version.
+        """
         return bool(self.model_version_id)
 
     @skip_if_read_only