diff --git a/net/sched/ematch.c b/net/sched/ematch.c
index b29439d..5e6f82e 100644
--- a/net/sched/ematch.c
+++ b/net/sched/ematch.c
@@ -410,7 +410,7 @@
 			if (em->ops->destroy)
 				em->ops->destroy(tp, em);
 			else if (!tcf_em_is_simple(em))
-				kfree(em->data);
+				kfree((void *) em->data);
 			module_put(em->ops->owner);
 		}
 	}