diff --git a/dao/seeds/source_types.yml b/dao/seeds/source_types.yml
index 5e709c80..f38bd16e 100644
--- a/dao/seeds/source_types.yml
+++ b/dao/seeds/source_types.yml
@@ -87,6 +87,10 @@ amazon:
           pattern: "^arnaws:.*"
         - type: min-length
           threshold: 10
+      - name: authentication.extra.external_id
+        component: text-field
+        hideField: true
+        initializeOnMount: true       
     - type: provisioning-arn
       name: Provisioning's ARN
       fields: