diff --git a/Makefile b/Makefile
index b6c8790925bf..30b66e261d89 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 VERSION = 2
 PATCHLEVEL = 6
-SUBLEVEL = 20
-EXTRAVERSION =
+SUBLEVEL = 21
+EXTRAVERSION = -rc1
 NAME = Homicidal Dwarf Hamster
 
 # *DOCUMENTATION*