diff --git a/Makefile b/Makefile
index 8a1958ac92e6..5b2af25f8030 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 VERSION = 2
 PATCHLEVEL = 6
 SUBLEVEL = 16
-EXTRAVERSION = .50
+EXTRAVERSION = .51-rc1
 NAME=Stable Penguin
 
 # *DOCUMENTATION*