diff --git a/bertopic/_bertopic.py b/bertopic/_bertopic.py
index 22b6c03c..d29505ce 100644
--- a/bertopic/_bertopic.py
+++ b/bertopic/_bertopic.py
@@ -456,7 +456,10 @@ def transform(self,
         """ After having fit a model, use transform to predict new instances
 
         Arguments:
-            documents: A single document or a list of documents to predict on
+            documents: A single document or a list of documents to predict on.                    
+                       Note that the behavior of the method might differ depending 
+                       on whether a single document or a list of documents is passed
+                       (especially when using the HDBSCAN algorithm)
             embeddings: Pre-trained document embeddings. These can be used
                         instead of the sentence-transformer model.
             images: A list of paths to the images to predict on or the images themselves