diff --git a/lib/moodlelib.php b/lib/moodlelib.php
index 918d05c4cdb..93c1dba8f68 100644
--- a/lib/moodlelib.php
+++ b/lib/moodlelib.php
@@ -1617,6 +1617,7 @@ function purge_all_caches() {
     cache_helper::purge_all();
 
     // Purge all other caches: rss, simplepie, etc.
+    clearstatcache();
     remove_dir($CFG->cachedir.'', true);
 
     // Make sure cache dir is writable, throws exception if not.