diff --git a/lib/filebrowser/file_info_context_course.php b/lib/filebrowser/file_info_context_course.php
index 5e61f562e29cd..dae2d8bef4c14 100644
--- a/lib/filebrowser/file_info_context_course.php
+++ b/lib/filebrowser/file_info_context_course.php
@@ -813,7 +813,7 @@ public function count_non_empty_children($extensions = '*', $limit = 1) {
             'component' => 'backup',
             'filearea' => 'section',
             'emptyfilename' => '.');
-        $sql1 = "SELECT DISTINCT cs.id sectionid FROM {files} f, {course_sections} cs
+        $sql1 = "SELECT DISTINCT cs.id AS sectionid FROM {files} f, {course_sections} cs
             WHERE cs.course = :courseid
             AND f.contextid = :contextid
             AND f.component = :component