diff --git a/tests/end2end/fixtures/quteprocess.py b/tests/end2end/fixtures/quteprocess.py
index 0d6edfda7..8d234f1c7 100644
--- a/tests/end2end/fixtures/quteprocess.py
+++ b/tests/end2end/fixtures/quteprocess.py
@@ -415,7 +415,8 @@ class QuteProc(testprocess.Process):
                 '--debug-flag', 'werror',
                 '--debug-flag', 'test-notification-service',
                 '--debug-flag', 'caret',
-                '--qt-flag', 'disable-features=PaintHoldingCrossOrigin']
+                '--qt-flag', 'disable-features=PaintHoldingCrossOrigin',
+                '--qt-arg', 'geometry', '800x600+0+0']
 
         if self.request.config.webengine and testutils.disable_seccomp_bpf_sandbox():
             args += testutils.DISABLE_SECCOMP_BPF_ARGS