diff --git a/qubesmanager/tests/__init__.py b/qubesmanager/tests/__init__.py
index 4a0faa3..3fb4909 100644
--- a/qubesmanager/tests/__init__.py
+++ b/qubesmanager/tests/__init__.py
@@ -13,4 +13,5 @@ def init_qtapp():
         qtapp = QtWidgets.QApplication(sys.argv)
         loop = quamash.QEventLoop(qtapp)
         asyncio.set_event_loop(loop)
+    qtapp.processEvents()
     return qtapp, loop