diff --git a/init/Kconfig b/init/Kconfig
index 14c483d..26ac877 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -302,7 +302,7 @@
 
 choice
 	prompt "RCU Implementation"
-	default CLASSIC_RCU
+	default TREE_RCU
 
 config CLASSIC_RCU
 	bool "Classic RCU"