diff --git a/CHANGELOG.txt b/CHANGELOG.txt
index 2003296ea2..351b0d9107 100644
--- a/CHANGELOG.txt
+++ b/CHANGELOG.txt
@@ -48,6 +48,7 @@ v27.0.00
         System: fixed PHP 8+ compatibility in CustomFieldIDs migration file
         System: fixed input serialization of form data in Import from File page
         System: fixed the file uploader to handle exif image rotation from mobile devices
+        System: fixed login access required message to always display the login form
         Activities: fixed highlight colour for Waiting List activities in View Activities
         Attendance: fixed handling of double periods in Set Future Absence tool
         Staff: fixed My Coverage page showing coverage from past years
diff --git a/index.php b/index.php
index 445b9f0881..8c0f6647d3 100644
--- a/index.php
+++ b/index.php
@@ -225,13 +225,13 @@
 $session->set('sidebarExtraPosition', 'top');
 
 // Check the current Action 'entrySidebar' to see if we should display a sidebar
-$showSidebar = $page->getAction()
+$page['showSidebar'] = $page->getAction()
     ? $page->getAction()['entrySidebar'] != 'N'
     : true;
 
 // Override showSidebar if the URL 'sidebar' param is explicitly set
 if (!empty($_GET['sidebar'])) {
-    $showSidebar = strtolower($_GET['sidebar']) !== 'false';
+    $page['showSidebar'] = strtolower($_GET['sidebar']) !== 'false';
 }
 
 /**
@@ -734,18 +734,19 @@
         }
     }
 }
+
 /**
  * GET SIDEBAR CONTENT
  *
  * TODO: rewrite the Sidebar class as a template file.
  */
 $sidebarContents = '';
-if ($showSidebar) {
+if ($page['showSidebar']) {
     $page->addSidebarExtra($session->get('sidebarExtra'));
     $session->set('sidebarExtra', '');
 
     $page->addData([
-        'sidebar'         => $showSidebar,
+        'sidebar'         => $page['showSidebar'],
         'sidebarContents' => $container->get(Gibbon\UI\Components\Sidebar::class)->getOutput(),
         'sidebarPosition' => $session->get('sidebarExtraPosition'),
     ]);
diff --git a/src/View/Page.php b/src/View/Page.php
index 21793ae4d7..7b88547f37 100644
--- a/src/View/Page.php
+++ b/src/View/Page.php
@@ -267,6 +267,11 @@ public function getAllScripts(string $context = null): array
      */
     public function addError(string $text)
     {
+        // Override to always display the sidebar when pages are inaccessible
+        if ($text == __('You do not have access to this action.') && empty($this['isLoggedIn'])) {
+            $this['showSidebar'] = true;
+        }
+
         $this->addAlert($text, 'error');
     }