diff --git a/pytest-slc/exasol/pytest_slc/__init__.py b/pytest-slc/exasol/pytest_slc/__init__.py
index ff595f6..2f1b3d1 100644
--- a/pytest-slc/exasol/pytest_slc/__init__.py
+++ b/pytest-slc/exasol/pytest_slc/__init__.py
@@ -103,6 +103,7 @@ def func(language_alias: str) -> None:
     return func
 
 
+@pytest.fixture(scope="session")
 def deployed_slc(deploy_slc, language_alias) -> None:
     """
     The fixture calls deploy_slc() once, with the language_alis defined in the fixture