diff --git a/config/dev.json b/config/dev.json
index 7d8f815d7..cf95551b9 100644
--- a/config/dev.json
+++ b/config/dev.json
@@ -4,5 +4,5 @@
   "clientId": "1087760099392-u18o6sqvb8uljmdltflohmd34h6hik9b.apps.googleusercontent.com",
   "firecloudUrl": "https://firecloud-orchestration.dsde-dev.broadinstitute.org/",
   "gwasUrl": "",
-  "nihUrl": "https://shibboleth.dsde-prod.broadinstitute.org/link-nih-account"
+  "nihUrl": "http://mock-nih.dev.test.firecloud.org/link-nih-account/index.html"
 }
diff --git a/src/libs/config.js b/src/libs/config.js
index aca6f5f0b..7559b09fd 100644
--- a/src/libs/config.js
+++ b/src/libs/config.js
@@ -17,7 +17,8 @@ export const Config = {
   authOpts: (token = Token.getToken()) => ({
     headers: {
       Authorization: `Bearer ${token}`,
-      Accept: 'application/json'
+      Accept: 'application/json',
+      'X-App-ID': 'DUOS'
     }
   }),
   fileOpts: (token = Token.getToken()) => ({