diff --git a/effects/cube/cube.cpp b/effects/cube/cube.cpp
index 43bdb8d47a..133401a4c0 100644
--- a/effects/cube/cube.cpp
+++ b/effects/cube/cube.cpp
@@ -1169,7 +1169,8 @@ void CubeEffect::postPaintScreen()
 
                 delete m_cubeCapBuffer;
                 m_cubeCapBuffer = NULL;
-                desktopNameFrame->free();
+                if (desktopNameFrame)
+                    desktopNameFrame->free();
             }
             effects->addRepaintFull();
         }