diff --git a/effects/cube/cube.cpp b/effects/cube/cube.cpp
index b6ae784009..52965aaa87 100644
--- a/effects/cube/cube.cpp
+++ b/effects/cube/cube.cpp
@@ -50,6 +50,7 @@ CubeEffect::CubeEffect()
     , cube_painting( false )
     , keyboard_grab( false )
     , schedule_close( false )
+    , painting_desktop( 1 )
     , frontDesktop( 0 )
     , cubeOpacity( 1.0 )
     , opacityDesktopOnly( true )