diff --git a/keybert/_llm.py b/keybert/_llm.py
index 5f800b33..740d8683 100644
--- a/keybert/_llm.py
+++ b/keybert/_llm.py
@@ -44,7 +44,7 @@ def extract_keywords(
             docs: The document(s) for which to extract keywords/keyphrases
             check_vocab: Only return keywords that appear exactly in the documents
             candidate_keywords: Candidate keywords for each document
-            threshold: TODO
+            threshold: Minimum similarity value between 0 and 1 used to decide how similar documents need to receive the same keywords.
             embeddings: TODO
 
         Returns: