diff --git a/src/main/java/com/stripe/model/File.java b/src/main/java/com/stripe/model/File.java
index ec7a2bbb574..086898129dc 100644
--- a/src/main/java/com/stripe/model/File.java
+++ b/src/main/java/com/stripe/model/File.java
@@ -92,7 +92,7 @@ public static File create(FileCreateParams params) throws StripeException {
    */
   public static File create(FileCreateParams params, RequestOptions options)
       throws StripeException {
-    checkNullTypedParams(String.format("%s/v1/files", Stripe.getUploadBase()), params);
+    checkNullTypedParams(ApiResource.fullUrl(Stripe.getUploadBase(), options, "/v1/files"), params);
     return create(params.toMap(), options);
   }
 
@@ -105,7 +105,8 @@ public static File create(Map<String, Object> params, RequestOptions options)
       throws StripeException {
     return request(
         RequestMethod.POST,
-        String.format("%s/v1/files", Stripe.getUploadBase()),
+        ApiResource.fullUrl(
+        Stripe.getUploadBase(), options, "/v1/files"),
         params,
         File.class,
         options);
diff --git a/src/main/java/com/stripe/net/OAuth.java b/src/main/java/com/stripe/net/OAuth.java
index 6d235ea96a8..a8bac5adc2e 100644
--- a/src/main/java/com/stripe/net/OAuth.java
+++ b/src/main/java/com/stripe/net/OAuth.java
@@ -46,7 +46,7 @@ public static String authorizeUrl(Map<String, Object> params, RequestOptions opt
    */
   public static TokenResponse token(Map<String, Object> params, RequestOptions options)
       throws StripeException {
-    String url = Stripe.getConnectBase() + "/oauth/token";
+    String url = ApiResource.fullUrl(Stripe.getConnectBase(), options,"/oauth/token");
     return OAuth.stripeResponseGetter.oauthRequest(
         ApiResource.RequestMethod.POST, url, params, TokenResponse.class, options);
   }
@@ -63,7 +63,7 @@ public static DeauthorizedAccount deauthorize(Map<String, Object> params, Reques
     Map<String, Object> paramsCopy = new HashMap<>();
     paramsCopy.putAll(params);
 
-    String url = Stripe.getConnectBase() + "/oauth/deauthorize";
+    String url = ApiResource.fullUrl(Stripe.getConnectBase(), options, "/oauth/deauthorize");
     paramsCopy.put("client_id", getClientId(paramsCopy, options));
     return OAuth.stripeResponseGetter.oauthRequest(
         ApiResource.RequestMethod.POST, url, paramsCopy, DeauthorizedAccount.class, options);