diff --git a/org.adempiere.ui.zk/WEB-INF/classes/readme.txt b/org.adempiere.ui.zk/WEB-INF/classes/readme.txt
new file mode 100644
index 0000000000..d95aa60a30
--- /dev/null
+++ b/org.adempiere.ui.zk/WEB-INF/classes/readme.txt
@@ -0,0 +1 @@
+this file is here to avoid hg remove the classes folder from new checkout causing subsequent build error.