diff --git a/graphene_django/static/graphene_django/graphiql.js b/graphene_django/static/graphene_django/graphiql.js
index 42366a8..8c3b5ce 100644
--- a/graphene_django/static/graphene_django/graphiql.js
+++ b/graphene_django/static/graphene_django/graphiql.js
@@ -175,7 +175,7 @@
     onEditQuery: onEditQuery,
     onEditVariables: onEditVariables,
     onEditOperationName: onEditOperationName,
-    headerEditorEnabled: GRAPHENE_SETTINGS.graphiqlHeaderEditorEnabled || true,
+    headerEditorEnabled: GRAPHENE_SETTINGS.graphiqlHeaderEditorEnabled,
     query: parameters.query,
   };
   if (parameters.variables) {
diff --git a/graphene_django/templates/graphene/graphiql.html b/graphene_django/templates/graphene/graphiql.html
index bcdb348..cec4893 100644
--- a/graphene_django/templates/graphene/graphiql.html
+++ b/graphene_django/templates/graphene/graphiql.html
@@ -45,9 +45,7 @@ add "&raw" to the end of the URL within a browser.
     {% if subscription_path %}
       subscriptionPath: "{{subscription_path}}",
     {% endif %}
-    {% if header_editor_enabled %}
-      graphiqlHeaderEditorEnabled: {{ graphiql_header_editor_enabled}},
-    {% endif %}
+      graphiqlHeaderEditorEnabled: {{ graphiql_header_editor_enabled|yesno:"true,false" }},
     };
   </script>
   <script src="{% static 'graphene_django/graphiql.js' %}"></script>