diff --git a/dask_distance/__init__.py b/dask_distance/__init__.py
index 186af19..75aadd8 100644
--- a/dask_distance/__init__.py
+++ b/dask_distance/__init__.py
@@ -132,6 +132,9 @@ def pdist(X, metric="euclidean", **kwargs):
 
     Keyword Args:
         p:          p-norm for minkowski only (default: 2)
+        V:          1-D array of variances (default: estimated from X)
+        VI:         Inverse of the covariance matrix
+                    (default: estimated from X)
 
     Returns:
         array:      condensed distance between each pair