diff --git a/effects/boxswitch/boxswitch.cpp b/effects/boxswitch/boxswitch.cpp
index 0963c8d88b..fc8f98b097 100644
--- a/effects/boxswitch/boxswitch.cpp
+++ b/effects/boxswitch/boxswitch.cpp
@@ -29,10 +29,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include <kcolorscheme.h>
 #include <kconfiggroup.h>
 
-#ifdef KWIN_HAVE_OPENGL_COMPOSITING
-#include <GL/gl.h>
-#endif
-
 namespace KWin
 {