diff --git a/app/models/turn_it_in/tii_action_get_view_url.rb b/app/models/turn_it_in/tii_action_get_view_url.rb
index 8bf518c49..a0e6b215d 100644
--- a/app/models/turn_it_in/tii_action_get_view_url.rb
+++ b/app/models/turn_it_in/tii_action_get_view_url.rb
@@ -20,7 +20,7 @@ def run
   def fetch_view_url
     exec_tca_call 'fetch view url' do
       data = TCAClient::SimilarityViewerUrlSettings.new(
-        viewer_user_id: params[:viewer_tii_id],
+        viewer_user_id: params['viewer_tii_id'] || params[:viewer_tii_id],
         locale: 'en-US',
         viewer_default_permission_set: "INSTRUCTOR"
       )