diff --git a/source/app/models/runner.rb b/source/app/models/runner.rb
index 9cd13fc86..9860061fb 100644
--- a/source/app/models/runner.rb
+++ b/source/app/models/runner.rb
@@ -17,6 +17,10 @@ def run(params)
       }
     }
 
+    if params[:rag_lambda] != ""
+      args[:manifest][:rag_lambda] = params[:rag_lambda]
+    end
+
     result = runner.run_cyber_dojo_sh(args)
 
     created = result.delete('created')
diff --git a/source/app/views/kata/_rag_lambda.html.erb b/source/app/views/kata/_rag_lambda.html.erb
new file mode 100644
index 000000000..3b524cfcd
--- /dev/null
+++ b/source/app/views/kata/_rag_lambda.html.erb
@@ -0,0 +1,12 @@
+<input name="rag_lambda" type="hidden" value="">
+
+<script>
+'use strict';
+$(() => {
+
+  const $ragLambda = $("input[name='rag_lambda']");
+  const manifest = cd.kata.manifest();
+  $ragLambda.val(manifest.rag_lambda);
+
+});
+</script>
diff --git a/source/app/views/kata/_view_test.html.erb b/source/app/views/kata/_view_test.html.erb
index 301ef3c81..54ce69f0a 100644
--- a/source/app/views/kata/_view_test.html.erb
+++ b/source/app/views/kata/_view_test.html.erb
@@ -4,6 +4,7 @@
 
 <%= form_tag( action: 'run_tests', id: @id ) do %>
   <%= render partial: 'image_name' %>
+  <%= render partial: 'rag_lambda' %>
   <%= render partial: 'index' %>
   <%= render partial: 'max_seconds' %>
   <div class="left-column">