diff --git a/lib/simpletest/testfilelib.php b/lib/simpletest/testfilelib.php
index 2ea0e364215..c6ec9834fcd 100644
--- a/lib/simpletest/testfilelib.php
+++ b/lib/simpletest/testfilelib.php
@@ -408,6 +408,5 @@ class test_file_info_module extends filelib_test {
     public function test_get_children() {
         $children = $this->fileinfo->get_children();
         $this->assertEqual(0, count($children));
-        $this->assertEqual(0, count($children));
     }
 }