diff --git a/langchain/vectorstores/chroma.py b/langchain/vectorstores/chroma.py
index 9f90f4e7..b4387fb1 100644
--- a/langchain/vectorstores/chroma.py
+++ b/langchain/vectorstores/chroma.py
@@ -190,8 +190,9 @@ class Chroma(VectorStore):
     ) -> List[Document]:
         """Return docs most similar to embedding vector.
         Args:
-            embedding: Embedding to look up documents similar to.
-            k: Number of Documents to return. Defaults to 4.
+            embedding (str): Embedding to look up documents similar to.
+            k (int): Number of Documents to return. Defaults to 4.
+            filter (Optional[Dict[str, str]]): Filter by metadata. Defaults to None.
         Returns:
             List of Documents most similar to the query vector.
         """