diff --git a/tests/fprintd.py b/tests/fprintd.py
index d295731..e5a20af 100755
--- a/tests/fprintd.py
+++ b/tests/fprintd.py
@@ -121,6 +121,7 @@ class FPrintdTest(dbusmock.DBusTestCase):
 
     @classmethod
     def setUpClass(cls):
+        super().setUpClass()
         fprintd = None
 
         if 'FPRINT_BUILD_DIR' in os.environ: