diff --git a/package.json b/package.json
index 564ea2ec..ad443893 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
     "name": "dropbox",
-    "version": "10.15.0",
+    "version": "10.16.0",
     "registry": "npm",
     "description": "The Dropbox JavaScript SDK is a lightweight, promise based interface to the Dropbox v2 API that works in both nodejs and browser environments.",
     "main": "cjs/index.js",
diff --git a/src/utils.js b/src/utils.js
index e94690a6..3d93de23 100644
--- a/src/utils.js
+++ b/src/utils.js
@@ -6,6 +6,9 @@ function getSafeUnicode(c) {
 }
 
 export const baseApiUrl = (subdomain, domain = DEFAULT_API_DOMAIN, domainDelimiter = '.') => {
+  if (!domainDelimiter) {
+    return `https://${domain}/2/`;
+  }
   if (domain !== DEFAULT_API_DOMAIN && TEST_DOMAIN_MAPPINGS[subdomain] !== undefined) {
     subdomain = TEST_DOMAIN_MAPPINGS[subdomain];
     domainDelimiter = '-';
diff --git a/test/unit/utils.js b/test/unit/utils.js
index 091d0934..e136a456 100644
--- a/test/unit/utils.js
+++ b/test/unit/utils.js
@@ -10,6 +10,13 @@ import {
 
 describe('Dropbox utils', () => {
   describe('baseApiUrl', () => {
+    it('correctly sets base url when domainDelimiter is empty', () => {
+      const host = 'api';
+      const domain = 'mydomain.com';
+      const testUrl = baseApiUrl(host, domain, '');
+      chai.assert.equal(testUrl, 'https://mydomain.com/2/');
+    });
+
     it('correctly sets base url when provided a subdomain', () => {
       const host = 'test';
       const testUrl = baseApiUrl(host);