diff --git a/CHANGELOG.md b/CHANGELOG.md
index 97bfbd3e..e79ff72f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -24,6 +24,7 @@
 - Added some new torrent clients into sidebar [\#146](https://github.com/torrentpier/torrentpier-lts/pull/146) ([belomaxorka](https://github.com/belomaxorka))
 - Fixed issue with atom feed [\#147](https://github.com/torrentpier/torrentpier-lts/pull/147) ([belomaxorka](https://github.com/belomaxorka))
 - Added theme exists check [\#149](https://github.com/torrentpier/torrentpier-lts/pull/149) ([belomaxorka](https://github.com/belomaxorka))
+- Use XS_TPL_PREFIX instread of 'tpl_' [\#150](https://github.com/torrentpier/torrentpier-lts/pull/150) ([belomaxorka](https://github.com/belomaxorka))
 - Minor fixes [\#124](https://github.com/torrentpier/torrentpier-lts/pull/124), [\#133](https://github.com/torrentpier/torrentpier-lts/pull/133), [\#135](https://github.com/torrentpier/torrentpier-lts/pull/135), [\#136](https://github.com/torrentpier/torrentpier-lts/pull/136), [\#139](https://github.com/torrentpier/torrentpier-lts/pull/139), [\#142](https://github.com/torrentpier/torrentpier-lts/pull/142), [\#144](https://github.com/torrentpier/torrentpier-lts/pull/144), [\#145](https://github.com/torrentpier/torrentpier-lts/pull/145), [\#148](https://github.com/torrentpier/torrentpier-lts/pull/148) ([belomaxorka](https://github.com/belomaxorka))
 
 ## [v2.1.5-2023.03](https://github.com/torrentpier/torrentpier-lts/tree/v2.1.5-2023.03) (2023-04-04)
diff --git a/library/ajax/manage_admin.php b/library/ajax/manage_admin.php
index d2a83f38..6f11a3d9 100644
--- a/library/ajax/manage_admin.php
+++ b/library/ajax/manage_admin.php
@@ -36,7 +36,7 @@ switch ($mode)
 
 		global $template;
 
-		$match = 'tpl_';
+		$match = XS_TPL_PREFIX;
 		$match_len = strlen($match);
 		$dir = $template->cachedir;
 		$res = @opendir($dir);