diff --git a/src/plugins/platforms/qnx/qqnxeglwindow.h b/src/plugins/platforms/qnx/qqnxeglwindow.h
index 3a3840f13c..d8cfd730ac 100644
--- a/src/plugins/platforms/qnx/qqnxeglwindow.h
+++ b/src/plugins/platforms/qnx/qqnxeglwindow.h
@@ -60,6 +60,8 @@ public:
 
     void setGeometry(const QRect &rect) override;
 
+    QSurfaceFormat format() const override { return m_format; }
+
 protected:
     int pixelFormat() const override;
     void resetBuffers() override;