diff --git a/qt/python/mantidqt/utils/qt/test/__init__.py b/qt/python/mantidqt/utils/qt/test/__init__.py
index 19a8885cfe81a5134675f81103b61d5810b03e8e..9380bdb1feb93d780de7b546281198e887b8fafe 100644
--- a/qt/python/mantidqt/utils/qt/test/__init__.py
+++ b/qt/python/mantidqt/utils/qt/test/__init__.py
@@ -63,7 +63,7 @@ def requires_qapp(cls):
         qapp = QApplication.instance()
         if qapp is None:
             setup_library_paths()
-            self._qapp = QApplication([''])
+            cls._qapp = QApplication([cls.__name__])
         else:
             self._qapp = qapp
         orig_setUp(self)