diff --git a/setup.py b/setup.py
index 096244c7b..be09d17cc 100644
--- a/setup.py
+++ b/setup.py
@@ -47,6 +47,7 @@
             "package_order",
             "conversion",
             "modelica_language",
+            "modelica_test_script",
         ],
         "teaser.data.output.modelicatemplate.AixLib": [
             "AixLib_Multizone",