diff --git a/phpBB/includes/acp/acp_attachments.php b/phpBB/includes/acp/acp_attachments.php
index 56376ad0ae..37a2ac807a 100644
--- a/phpBB/includes/acp/acp_attachments.php
+++ b/phpBB/includes/acp/acp_attachments.php
@@ -636,7 +636,7 @@ class acp_attachments
 				$cat_lang = array(
 					ATTACHMENT_CATEGORY_NONE		=> $user->lang['NO_FILE_CAT'],
 					ATTACHMENT_CATEGORY_IMAGE		=> $user->lang['CAT_IMAGES'],
-					ATTACHMENT_CATEGORY_AUDIO		=> $user->lang['CAT_AUDIO_FILES'],
+					ATTACHMENT_CATEGORY_AUDIO		=> $user->lang('CAT_AUDIO_FILES'),
 				);
 
 				$group_id = $request->variable('g', 0);
@@ -1411,7 +1411,7 @@ class acp_attachments
 		$types = array(
 			ATTACHMENT_CATEGORY_NONE		=> $user->lang['NO_FILE_CAT'],
 			ATTACHMENT_CATEGORY_IMAGE		=> $user->lang['CAT_IMAGES'],
-			ATTACHMENT_CATEGORY_AUDIO		=> $user->lang['CAT_AUDIO_FILES'],
+			ATTACHMENT_CATEGORY_AUDIO		=> $user->lang('CAT_AUDIO_FILES'),
 		);
 
 		if ($group_id)