diff --git a/openstack/identity/v3/extensions/trusts/testing/doc.go b/openstack/identity/v3/extensions/trusts/testing/doc.go
new file mode 100644
index 0000000..e660e20
--- /dev/null
+++ b/openstack/identity/v3/extensions/trusts/testing/doc.go
@@ -0,0 +1,2 @@
+// identity_extensions_trusts_v3
+package testing