diff --git a/Units/MMLAddon/mmlpsthread.pas b/Units/MMLAddon/mmlpsthread.pas
index b367b28..943db2d 100644
--- a/Units/MMLAddon/mmlpsthread.pas
+++ b/Units/MMLAddon/mmlpsthread.pas
@@ -298,6 +298,7 @@ begin
   Client.Free;
   Includes.free;
   Prop.Free;
+  Sett.Free;
   inherited Destroy;
 end;