diff --git a/ext/imap/tests/imap_lsub_basic.phpt b/ext/imap/tests/imap_lsub_basic.phpt
index 98875266d74..3cd4722e1f6 100644
--- a/ext/imap/tests/imap_lsub_basic.phpt
+++ b/ext/imap/tests/imap_lsub_basic.phpt
@@ -5,6 +5,7 @@ Olivier Doucet
 --SKIPIF--
 <?php
 require_once(__DIR__.'/skipif.inc');
+if (getenv("SKIP_ASAN")) die("skip leak sanitizer crashes");
 ?>
 --FILE--
 <?php