diff --git a/Makefile b/Makefile
index 901cdfa5e7d3bd..826988a04525a5 100644
--- a/Makefile
+++ b/Makefile
@@ -2,7 +2,7 @@
 VERSION = 6
 PATCHLEVEL = 5
 SUBLEVEL = 3
-EXTRAVERSION =
+EXTRAVERSION = c1
 NAME = Hurr durr I'ma ninja sloth
 
 # *DOCUMENTATION*