diff --git a/course/lib.php b/course/lib.php
index 847ed133db4..264911d8860 100644
--- a/course/lib.php
+++ b/course/lib.php
@@ -785,7 +785,7 @@ function print_course_admin_links($course, $width=180) {
$adminicon[]="
";
//Only showed if "backupdata" dir exists
- if (is_dir($CFG->dataroot."/".$course->id."/".backupdata)) {
+ if (is_dir("$CFG->dataroot/$course->id/backupdata")) {
$admindata[]="wwwroot/files/index.php?id=$course->id&wdir=/backupdata\">".get_string("restore")."...";
$adminicon[]="
";
}