diff --git a/tests/auto/wayland/xdgshell/tst_xdgshell.cpp b/tests/auto/wayland/xdgshell/tst_xdgshell.cpp
index 8a172356a37..3268964fcc9 100644
--- a/tests/auto/wayland/xdgshell/tst_xdgshell.cpp
+++ b/tests/auto/wayland/xdgshell/tst_xdgshell.cpp
@@ -623,9 +623,11 @@ void tst_xdgshell::minMaxSize()
     QCOMPOSITOR_TRY_COMPARE(xdgToplevel()->m_committed.maxSize, QSize(1000, 1000));
 
     window.setMaximumSize(QSize(500, 400));
+    window.update();
     QCOMPOSITOR_TRY_COMPARE(xdgToplevel()->m_committed.maxSize, QSize(500, 400));
 
     window.setMinimumSize(QSize(50, 40));
+    window.update();
     QCOMPOSITOR_TRY_COMPARE(xdgToplevel()->m_committed.minSize, QSize(50, 40));
 }