1 files changed, 1 insertions, 1 deletions
diff --git a/src/plugins/platforms/xcb/qxcbwindow.h b/src/plugins/platforms/xcb/qxcbwindow.h
index ab18b502be..e2f62401dc 100644
--- a/src/plugins/platforms/xcb/qxcbwindow.h
+++ b/src/plugins/platforms/xcb/qxcbwindow.h
@@ -81,7 +81,7 @@ public:
     QMargins frameMargins() const;
 
     void setVisible(bool visible);
-    Qt::WindowFlags setWindowFlags(Qt::WindowFlags flags);
+    void setWindowFlags(Qt::WindowFlags flags);
     Qt::WindowState setWindowState(Qt::WindowState state);
     WId winId() const;
     void setParent(const QPlatformWindow *window);