diff --git a/docs/api.rst b/docs/api.rst
index b3d3e8e30..25f0b6d0e 100644
--- a/docs/api.rst
+++ b/docs/api.rst
@@ -111,6 +111,7 @@ Methods
    ld_prune
    maximal_independent_set
    observed_heterozygosity
+   pairwise_distance
    pbs
    pedigree_contribution
    pedigree_inbreeding