diff --git a/autotests/integration/shell_client_test.cpp b/autotests/integration/shell_client_test.cpp
--- a/autotests/integration/shell_client_test.cpp
+++ b/autotests/integration/shell_client_test.cpp
@@ -730,7 +730,10 @@
     QVERIFY(fullscreenChangedSpy.wait());
     if (decoMode == ServerSideDecoration::Mode::Server) {
          QVERIFY(sizeChangeRequestedSpy.wait());
-         // don't check count, XDG might legitimately get two updates
+         // XDG will legitimately get two updates. They might be batched
+         if (xdgShellSurface && sizeChangeRequestedSpy.count() == 1) {
+             QVERIFY(sizeChangeRequestedSpy.wait());
+         }
 
          // fails as we don't correctly call setMaximize(false)
          // but realistically the only toolkits that support the deco also use XDGShell