diff --git a/suppr-lsan.txt b/suppr-lsan.txt
index 76a546e089..ac08aa9a88 100644
--- a/suppr-lsan.txt
+++ b/suppr-lsan.txt
@@ -26,3 +26,4 @@ leak:pkcs11_init_key
 leak:pkcs11_strdup
 leak:xmlGetGlobalState
 leak:xmlNewGlobalState
+leak:__xmlDefaultBufferSize