diff --git a/README.md b/README.md
index 0c3767e0e450a44d6ade1a8afeadf3d5b5a69a6f..add87bf99894b3be916370688176bcdd9a267c89 100644
--- a/README.md
+++ b/README.md
@@ -7,6 +7,7 @@ Java-based application to make calls to [Corpus Services](https://gitlab.rrz.uni
 Currently tested with
 - Java 11
 - Maven 3.8
+- Linux
 
 ## Build and run
 - cd lib