diff --git a/.gitignore b/.gitignore
index 54d176c..dc38971 100644
--- a/.gitignore
+++ b/.gitignore
@@ -12,3 +12,4 @@ xtide-2.11.tar.bz2
 /xtide-2.12.1.tar.bz2
 /harmonics-dwf-20111230-free.tar.bz2
 /harmonics-dwf-20120302-free.tar.bz2
+/xtide-2.13-RC2.tar.bz2
diff --git a/sources b/sources
index bca6273..7a102ed 100644
--- a/sources
+++ b/sources
@@ -2,3 +2,4 @@
 985c2f69eea343782142fa459fc34128  harmonics-dwf-20110410-free.tar.bz2
 6291bc5015dbc57672a6950ac77c89a6  harmonics-dwf-20111230-free.tar.bz2
 6bbd2ea64667eb8720a8761223696617  harmonics-dwf-20120302-free.tar.bz2
+b0728303b7116480318708fbe9c9b964  xtide-2.13-RC2.tar.bz2
diff --git a/xtide.spec b/xtide.spec
index a6a008a..79d0639 100644
--- a/xtide.spec
+++ b/xtide.spec
@@ -1,9 +1,9 @@
-%define          mainver   2.12.1
-%undefine          betatag   
+%define          mainver   2.13
+%define          betatag   RC2
 %define          dwfdate   20120302
 
 
-%define          fedorarel  4
+%define          fedorarel  1
 
 
 %define          rel        %{?betatag:0.}%{fedorarel}%{?betatag:.%(echo %betatag | sed -e 's|-||g')}
@@ -285,6 +285,9 @@ exit 0
 %{_datadir}/man/man8/xttpd.8*
 
 %changelog
+* Mon Mar  5 2012 Mamoru Tasaka <mtasaka@fedoraproject.org> - 2.13-0.1.RC2
+- 2.13 rc2
+
 * Mon Mar  5 2012 Mamoru Tasaka <mtasaka@fedoraproject.org> - 2.12.1-4
 - Update harmonics data to 20120302
 - Modify rc script for new systemd