diff --git a/README.md b/README.md
index 3e9cad1..75f8b3f 100644
--- a/README.md
+++ b/README.md
@@ -4,3 +4,4 @@ Author: G.Assmann (2024) \
 ## Documentation
 https://gitlab.psi.ch/sf-mx/docs/-/wikis/Clara 
 
+## test-server located at heidi-test.psi.ch