diff --git a/Makefile b/Makefile
index 9a820c525b86192b5bfc2d0c118d0661c6cf566d..2284d1ca250397f874c7cd85f005a4405e9982bc 100644
--- a/Makefile
+++ b/Makefile
@@ -2,7 +2,7 @@
 VERSION = 5
 PATCHLEVEL = 18
 SUBLEVEL = 0
-EXTRAVERSION = -rc5
+EXTRAVERSION = -rc6
 NAME = Superb Owl
 
 # *DOCUMENTATION*