diff --git a/control/README.md b/control/README.md
index 846d379..f605248 100644
--- a/control/README.md
+++ b/control/README.md
@@ -9,3 +9,12 @@ or simply
 
     make check
 
+
+
+Control file location
+---------------------
+
+This package contains only the diff to the common files.
+
+For the main control file, see
+https://github.com/yast/skelcd-control-leanos/tree/master/control