diff --git a/tests/auto/wayland/client/tst_client.cpp b/tests/auto/wayland/client/tst_client.cpp
index 1e0fc5675b8..ab9e5754d39 100644
--- a/tests/auto/wayland/client/tst_client.cpp
+++ b/tests/auto/wayland/client/tst_client.cpp
@@ -113,6 +113,7 @@ class TestGlWindow : public QOpenGLWindow
 
 public:
     TestGlWindow();
+    uint paintGLCalled = 0;
 
 protected:
     void paintGL() override;
@@ -124,6 +125,7 @@ TestGlWindow::TestGlWindow()
 void TestGlWindow::paintGL()
 {
     glClear(GL_COLOR_BUFFER_BIT);
+    ++paintGLCalled;
 }
 
 class tst_WaylandClient : public QObject
@@ -550,6 +552,8 @@ void tst_WaylandClient::glWindow()
     QSharedPointer<MockSurface> surface;
     QTRY_VERIFY(surface = compositor->surface());
 
+    QTRY_VERIFY(testWindow->paintGLCalled);
+
     //confirm we don't crash when we delete an already hidden GL window
     //QTBUG-65553
     testWindow->setVisible(false);