diff --git a/static/bidder-info/sonobi.yaml b/static/bidder-info/sonobi.yaml
index 4b7dcd3c4d4..422ba610a6f 100644
--- a/static/bidder-info/sonobi.yaml
+++ b/static/bidder-info/sonobi.yaml
@@ -14,6 +14,9 @@ capabilities:
       - video
       - native
 userSync:
+  iframe:
+    url: "https://sync.go.sonobi.com/uc.html?gdpr={{.GDPR}}&gdpr_consent={{.GDPRConsent}}&us_privacy={{.USPrivacy}}&loc={{.RedirectURL}}"
+    userMacro: "[UID]"
   redirect:
     url: "https://sync.go.sonobi.com/us.gif?gdpr={{.GDPR}}&gdpr_consent={{.GDPRConsent}}&us_privacy={{.USPrivacy}}&loc={{.RedirectURL}}"
     userMacro: "[UID]"