diff --git a/acceptance/tools/tools.go b/acceptance/tools/tools.go
index 7247d60..594bfba 100644
--- a/acceptance/tools/tools.go
+++ b/acceptance/tools/tools.go
@@ -46,7 +46,8 @@
 		return ts, err
 	}
 
-	ts.A, err = identity.Authenticate(ts.O)
+	client := &gophercloud.ServiceClient{Endpoint: ts.O.IdentityEndpoint + "/"}
+	ts.A, err = identity.Authenticate(client, ts.O)
 	if err != nil {
 		return ts, err
 	}