diff --git a/scene_xrender.cpp b/scene_xrender.cpp
index 4ee755aef4..ee6ff581e7 100644
--- a/scene_xrender.cpp
+++ b/scene_xrender.cpp
@@ -481,7 +481,7 @@ void SceneXrender::Window::performPaint(int mask, QRegion region, WindowPaintDat
     Client *client = dynamic_cast<Client*>(toplevel);
     Deleted *deleted = dynamic_cast<Deleted*>(toplevel);
     const QRect decorationRect = toplevel->decorationRect();
-    if ((client && !client->noBorder()) || (deleted && !deleted->noBorder()) &&
+    if (((client && !client->noBorder()) || (deleted && !deleted->noBorder())) &&
                                                         Workspace::self()->decorationHasAlpha()) {
         // decorated client
         transformed_shape = decorationRect;