diff --git a/docs/conf.py b/docs/conf.py
index fe1fb6b..18e4ec5 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -87,6 +87,8 @@
     "python": ("https://docs.python.org/3", None),
     "anndata": ("https://anndata.readthedocs.io/en/stable/", None),
     "numpy": ("https://numpy.org/doc/stable/", None),
+    "pandas": ("https://pandas.pydata.org/pandas-docs/stable/", None),
+    "sklearn": ("https://scikit-learn.org/stable/", None),
 }
 
 # List of patterns, relative to source directory, that match files and
diff --git a/src/fknni/faiss/faiss.py b/src/fknni/faiss/faiss.py
index 3bc63be..7ad0b30 100644
--- a/src/fknni/faiss/faiss.py
+++ b/src/fknni/faiss/faiss.py
@@ -71,7 +71,7 @@ def transform(self, X: np.ndarray | pd.DataFrame) -> np.ndarray:
             X: Data with missing values to impute. Expected to be either a NumPy array or a pandas DataFrame.
 
         Returns:
-            X_imputed: Data with imputed values as a NumPy array.
+            Data with imputed values as a NumPy array.
         """
         X = check_array(X, dtype=np.float32, force_all_finite="allow-nan")
         check_is_fitted(self, "index_")