diff --git a/man/XY.Rd b/man/XY.Rd
index 0088ea34..3adbba72 100644
--- a/man/XY.Rd
+++ b/man/XY.Rd
@@ -66,4 +66,6 @@ m3 <- XY(gpoly)
 plot(gpoly)
 XY(gpoly) <- m3 / 2
 plot(gpoly)
+
+XY(gpoly[1:10]) # vertices from first 10 polys
 }
diff --git a/man/subsetGiotto.Rd b/man/subsetGiotto.Rd
index 5e980771..adcb8701 100644
--- a/man/subsetGiotto.Rd
+++ b/man/subsetGiotto.Rd
@@ -10,7 +10,7 @@ subsetGiotto(
   feat_type = "rna",
   cell_ids = NULL,
   feat_ids = NULL,
-  poly_info = NULL,
+  poly_info = spat_unit,
   all_spat_units = NULL,
   all_feat_types = NULL,
   spat_unit_fsub = ":all:",