diff --git a/feature-policy/feature-policy-for-sandbox/resources/helper.js b/feature-policy/feature-policy-for-sandbox/resources/helper.js
index 09a8aa7846cd72..9de8416535613f 100644
--- a/feature-policy/feature-policy-for-sandbox/resources/helper.js
+++ b/feature-policy/feature-policy-for-sandbox/resources/helper.js
@@ -7,8 +7,8 @@ const ignore_features_for_auxilary_context = ["popups", "scripts"];
 
 // Feature-policies that represent specific sandbox flags.
 const sandbox_features = [
-    "forms", "modals", "orientation-lock", "pointer-lock", "popups",
-    "presentation", "scripts", "top-navigation"];
+    "downloads-without-user-activation", "forms", "modals", "orientation-lock",
+    "pointer-lock", "popups", "presentation", "scripts", "top-navigation"];
 
 // TODO(ekaramad): Figure out different inheritance requirements for different
 // policies.