diff --git a/download.md b/download.md
index 5e86ddda9f..03ac3f80d6 100644
--- a/download.md
+++ b/download.md
@@ -550,7 +550,7 @@ Prebid.js is open source software that is offered for free as a convenience. Whi
 <label><input type="checkbox" moduleCode="pubCommonIdSystem" class="bidder-check-box"> User ID: PubCommon ID</label>
 </div></div>
 <div class="col-md-4"><div class="checkbox">
-<label><input type="checkbox" moduleCode="quantcastId" class="bidder-check-box"> User ID: Quantcast ID</label>
+<label><input type="checkbox" moduleCode="quantcastIdSystem" class="bidder-check-box"> User ID: Quantcast ID</label>
 </div></div>
 <div class="col-md-4"><div class="checkbox">
 <label><input type="checkbox" moduleCode="sharedIdSystem" class="bidder-check-box"> User ID: Shared ID</label>