diff --git a/configure.in b/configure.in
index 1e21b2f3fac..232fd176ea2 100644
--- a/configure.in
+++ b/configure.in
@@ -10,7 +10,7 @@ AC_CANONICAL_SYSTEM
 #
 # When changing major version number please also check switch statement
 # in mysqlbinlog::check_master_version().
-AM_INIT_AUTOMAKE(mysql, 5.1.22-beta)
+AM_INIT_AUTOMAKE(mysql, 5.1.22-rc)
 AM_CONFIG_HEADER([include/config.h:config.h.in])
 
 PROTOCOL_VERSION=10