diff --git a/debian/tests/control b/debian/tests/control
index 91a1d9644..2f77dfa4d 100644
--- a/debian/tests/control
+++ b/debian/tests/control
@@ -13,5 +13,5 @@ Restrictions: needs-root
 #
 # Run unit and integration tests on installed files.
 #
-Test-Command: PYTHONPATH='/usr/lib/python3/dist-packages/plinth/' py.test-3 -p no:cacheprovider --cov=plinth --cov-report=html:debci/htmlcov --cov-report=term
+Test-Command: PYTHONPATH='/usr/lib/python3/dist-packages/' py.test-3 -p no:cacheprovider --cov=plinth --cov-report=html:debci/htmlcov --cov-report=term
 Depends: git, python3-openssl, python3-pytest, python3-pytest-cov, python3-pytest-django, python3-tomli | python3-coverage (<< 6.0), @