diff --git a/tests/unit/keyinput/test_keyutils.py b/tests/unit/keyinput/test_keyutils.py
index 43d9bf879..c1ddbcb5a 100644
--- a/tests/unit/keyinput/test_keyutils.py
+++ b/tests/unit/keyinput/test_keyutils.py
@@ -50,6 +50,10 @@ class KeyTestWidget(QWidget):
 
     got_text = pyqtSignal()
 
+    def __init__(self, parent=None):
+        super().__init__(parent)
+        self.text = None
+
     def keyPressEvent(self, e):
         self.text = e.text()
         self.got_text.emit()