diff --git a/phpBB/adm/style/acp_board.html b/phpBB/adm/style/acp_board.html
index df7f5e537b..cd4c25a756 100644
--- a/phpBB/adm/style/acp_board.html
+++ b/phpBB/adm/style/acp_board.html
@@ -34,7 +34,7 @@
 
 <!-- IF S_AUTH -->
 	<!-- BEGIN auth_tpl -->
-		<!-- INCLUDE {auth_tpl.TPL} -->
+		<!-- INCLUDE {auth_tpl.template_file} -->
 	<!-- END auth_tpl -->
 <!-- ENDIF -->
 
diff --git a/phpBB/includes/acp/acp_board.php b/phpBB/includes/acp/acp_board.php
index b5f145a598..5d824dea9e 100644
--- a/phpBB/includes/acp/acp_board.php
+++ b/phpBB/includes/acp/acp_board.php
@@ -659,7 +659,7 @@ class acp_board
 				if ($auth_tpl)
 				{
 					$template->assign_block_vars('auth_tpl', array(
-						'TPL'	=> $auth_tpl,
+						'template_file'	=> $auth_tpl,
 					));
 				}
 			}