diff --git a/tools/testClient/README b/tools/testClient/README
index f8e18e74bc0..6dc79d47bf4 100644
--- a/tools/testClient/README
+++ b/tools/testClient/README
@@ -1,5 +1,8 @@
 CloudStack Test Client
-1. generate Cloudstack API python code from an API XML spec file
+0. Generate API XML spec file
+   ant build-apidocs, the output xml file is dist/commands.xml
+
+1. generate Cloudstack API python code from an API XML spec file generated by step 0
    python codegenerator.py  -o where-to-put-the-cloudstack-api -s where-the-spec-file
 
 2. Facility it provides: