diff --git a/includes/database.php b/includes/database.php
index b5e7c89..319140b 100644
--- a/includes/database.php
+++ b/includes/database.php
@@ -222,6 +222,15 @@ function intropage_upgrade_database(): void {
 	$current = $info['version'];
 	$oldv    = db_fetch_cell('SELECT version FROM plugin_config WHERE directory = "intropage"');
 
+	// The plugin's library directory moved from include/ to includes/. Repoint
+	// any plugin_hooks row still bound to the old path on every check - not only
+	// during a version-change upgrade - because an install whose version was
+	// already bumped without its hooks being repointed would otherwise keep
+	// loading the stale include/<file> path (or, once include/ is deleted, fail
+	// Cacti's plugin file-inclusion security check for it) on every page. The
+	// LIKE filter makes this a no-op on healthy installs.
+	db_execute("UPDATE plugin_hooks SET file = REPLACE(file, 'include/', 'includes/') WHERE name = 'intropage' AND file LIKE 'include/%'");
+
 	if (!cacti_version_compare($oldv, $current, '=')) {
 		if (cacti_version_compare($oldv, '3.0.0', '<=')) {
 			include_once($config['base_path'] . '/plugins/intropage/includes/functions.php');
@@ -369,11 +378,6 @@ function intropage_upgrade_database(): void {
 				ADD COLUMN `height` enum("normal","double","triple") NOT NULL DEFAULT "normal"');
 		}
 
-		// The plugin's library directory moved from include/ to includes/; repoint
-		// any hook still registered against the old path so existing installs load
-		// them from the new location after upgrade.
-		db_execute("UPDATE plugin_hooks SET file = REPLACE(file, 'include/', 'includes/') WHERE name = 'intropage' AND file LIKE 'include/%'");
-
 		// Remove files/directories a previous version left behind (per manifest.json).
 		plugin_intropage_prune_files();
 
diff --git a/tests/Unit/IntropageLifecycleTest.php b/tests/Unit/IntropageLifecycleTest.php
index b9f1a94..b532c6d 100644
--- a/tests/Unit/IntropageLifecycleTest.php
+++ b/tests/Unit/IntropageLifecycleTest.php
@@ -3,6 +3,8 @@
  +-------------------------------------------------------------------------+
  | Copyright (C) 2004-2026 The Cacti Group                                 |
  +-------------------------------------------------------------------------+
+ | Cacti: The Complete RRDtool-based Graphing Solution                     |
+ +-------------------------------------------------------------------------+
 */
 
 /*
@@ -45,8 +47,17 @@
 	expect(plugin_intropage_upgrade())->toBeFalse();
 });
 
-it('does nothing when the stored version already matches the plugin version', function () {
+it('repoints stale include/ hooks even when the stored version already matches', function () {
 	plugin_intropage_check_config();
 
-	expect($GLOBALS['__test_db_calls'])->toBeEmpty();
+	// On an up-to-date install the only work is the idempotent include/ ->
+	// includes/ plugin_hooks repoint; no schema migration or version write runs.
+	expect($GLOBALS['__test_db_calls'])->toHaveCount(1);
+
+	$call = $GLOBALS['__test_db_calls'][0];
+
+	expect($call['fn'])->toBe('db_execute')
+		->and($call['sql'])->toContain('UPDATE plugin_hooks')
+		->and($call['sql'])->toContain("REPLACE(file, 'include/', 'includes/')")
+		->and($call['sql'])->toContain("file LIKE 'include/%'");
 });