diff --git a/includes/settings.php b/includes/settings.php
index f0f8a41..d7ec80e 100644
--- a/includes/settings.php
+++ b/includes/settings.php
@@ -157,7 +157,7 @@ function intropage_user_admin_tab(): void {
 
 	print '<li class="subTab">';
 
-	if (get_request_var_request('tab') == 'intropage_settings_edit') {
+	if (get_request_var('tab') == 'intropage_settings_edit') {
 		print '<a class="tab selected" ';
 	} else {
 		print '<a class="tab" ';
@@ -184,7 +184,7 @@ function intropage_user_group_admin_tab(): void {
 
 	print '<li class="subTab">';
 
-	if (get_request_var_request('tab') == 'intropage_group_settings_edit') {
+	if (get_request_var('tab') == 'intropage_group_settings_edit') {
 		print '<a class="tab selected" ';
 	} else {
 		print '<a class="tab" ';
diff --git a/tests/Unit/IntropageUserAdminTabTest.php b/tests/Unit/IntropageUserAdminTabTest.php
new file mode 100644
index 0000000..2e86f1b
--- /dev/null
+++ b/tests/Unit/IntropageUserAdminTabTest.php
@@ -0,0 +1,44 @@
+<?php
+/*
+ +-------------------------------------------------------------------------+
+ | Copyright (C) 2004-2026 The Cacti Group                                 |
+ +-------------------------------------------------------------------------+
+ | Cacti: The Complete RRDtool-based Graphing Solution                     |
+ +-------------------------------------------------------------------------+
+*/
+
+/*
+ * Unit coverage for the user_admin_tab and user_group_admin_tab hooks in
+ * includes/settings.php: each prints one sub-tab link that points at the
+ * plugin's edit tab.
+ */
+
+require_once __DIR__ . '/../../includes/settings.php';
+
+it('prints the user admin sub-tab link', function () {
+	global $config;
+
+	$config['url_path'] = '/cacti/';
+
+	ob_start();
+	intropage_user_admin_tab();
+	$html = ob_get_clean();
+
+	expect($html)->toStartWith('<li class="subTab">');
+	expect($html)->toContain('href="/cacti/user_admin.php?action=user_edit&amp;tab=intropage_settings_edit&amp;id="');
+	expect($html)->toContain('>Intropage</a></li>');
+});
+
+it('prints the user group admin sub-tab link', function () {
+	global $config;
+
+	$config['url_path'] = '/cacti/';
+
+	ob_start();
+	intropage_user_group_admin_tab();
+	$html = ob_get_clean();
+
+	expect($html)->toStartWith('<li class="subTab">');
+	expect($html)->toContain('href="/cacti/user_group_admin.php?action=edit&amp;tab=intropage_group_settings_edit&amp;id="');
+	expect($html)->toContain('>Intropage</a></li>');
+});