diff --git a/sys/kern/kern_timeout.c b/sys/kern/kern_timeout.c
index 967d4e0e1d6b..a120bd51fe24 100644
--- a/sys/kern/kern_timeout.c
+++ b/sys/kern/kern_timeout.c
@@ -119,8 +119,8 @@ struct cc_mig_ent {
  *	when the callout should be served.
  */
 struct callout_cpu {
-	struct cc_mig_ent	cc_migrating_entity;
 	struct mtx		cc_lock;
+	struct cc_mig_ent	cc_migrating_entity __aligned(CACHE_LINE_SIZE);
 	struct callout		*cc_callout;
 	struct callout_tailq	*cc_callwheel;
 	struct callout_list	cc_callfree;