diff --git a/kernel/rcutree_plugin.h b/kernel/rcutree_plugin.h
index fb92b6dd9980..70e0fd256cc6 100644
--- a/kernel/rcutree_plugin.h
+++ b/kernel/rcutree_plugin.h
@@ -68,7 +68,7 @@ static void __init rcu_bootup_announce_oddness(void)
 	printk(KERN_INFO "\tAdditional per-CPU info printed with stalls.\n");
 #endif
 #if NUM_RCU_LVL_4 != 0
-	printk(KERN_INFO "\tExperimental four-level hierarchy is enabled.\n");
+	printk(KERN_INFO "\tFour-level hierarchy is enabled.\n");
 #endif
 	if (rcu_fanout_leaf != CONFIG_RCU_FANOUT_LEAF)
 		printk(KERN_INFO "\tExperimental boot-time adjustment of leaf fanout to %d.\n", rcu_fanout_leaf);