diff --git a/Makefile b/Makefile
index a6847db89d4ef12cc651a09eb4c1845c33566eeb..840c9768accc103cf541380b8d8152cf0c46a778 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 VERSION = 2
 PATCHLEVEL = 6
 SUBLEVEL = 16
-EXTRAVERSION = .57
+EXTRAVERSION = .58-rc1
 NAME=Stable Penguin
 
 # *DOCUMENTATION*