diff --git a/tests/test_server_time.py b/tests/test_server_time.py
index a78d453..7bb7397 100644
--- a/tests/test_server_time.py
+++ b/tests/test_server_time.py
@@ -14,7 +14,11 @@ from dzgui.views.dialogs.calc import (
 
 
 class DummyEmitter:
-    pass
+    def __init__(self) -> None:
+        pass
+
+    def connect(self, _, __) -> None:
+        pass
 
 
 @pytest.fixture(params=[("05:00", 10.0), ("15:30", 5.0)])