diff --git a/graphene_django/templates/graphene/graphiql.html b/graphene_django/templates/graphene/graphiql.html
index 8e71a69..bcdb348 100644
--- a/graphene_django/templates/graphene/graphiql.html
+++ b/graphene_django/templates/graphene/graphiql.html
@@ -46,7 +46,7 @@ add "&raw" to the end of the URL within a browser.
       subscriptionPath: "{{subscription_path}}",
     {% endif %}
     {% if header_editor_enabled %}
-      graphiqlHeaderEditorEnabled: "{{ graphiql_header_editor_enabled}}",
+      graphiqlHeaderEditorEnabled: {{ graphiql_header_editor_enabled}},
     {% endif %}
     };
   </script>