diff --git a/Makefile b/Makefile
index 1f4ca485b70c..0603c4c97331 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 VERSION = 2
 PATCHLEVEL = 6
 SUBLEVEL = 16
-EXTRAVERSION = .39
+EXTRAVERSION = .40-rc1
 NAME=Stable Penguin
 
 # *DOCUMENTATION*