Merge branch 'master' of github.com:golang/oauth2
diff --git a/google/google.go b/google/google.go
index f13af06..6622e9a 100644
--- a/google/google.go
+++ b/google/google.go
@@ -17,7 +17,6 @@
 	"encoding/json"
 	"io/ioutil"
 	"net/http"
-	"path"
 	"time"
 
 	"github.com/golang/oauth2"
@@ -104,7 +103,7 @@
 	if c.account != "" {
 		account = c.account
 	}
-	u := "http://" + path.Join("metadata/computeMetadata/v1/instance/service-accounts", account, "token")
+	u := "http://metadata/computeMetadata/v1/instance/service-accounts/" + account + "/token"
 	req, err := http.NewRequest("GET", u, nil)
 	if err != nil {
 		return