diff --git a/tzdata-2011n-leapsec.patch b/tzdata-2011n-leapsec.patch
new file mode 100644
index 0000000..ee8c90b
--- /dev/null
+++ b/tzdata-2011n-leapsec.patch
@@ -0,0 +1,77 @@
+--- leapseconds	2012-01-06 10:47:32.000000000 +0000
++++ leapseconds.new	2012-01-06 10:49:42.000000000 +0000
+@@ -48,40 +48,53 @@
+ Leap	1998	Dec	31	23:59:60	+	S
+ Leap	2005	Dec	31	23:59:60	+	S
+ Leap	2008	Dec	31	23:59:60	+	S
++Leap	2012	Jun	30	23:59:60	+	S
+ 
+-# INTERNATIONAL EARTH ROTATION AND REFERENCE SYSTEMS SERVICE (IERS)
++#      INTERNATIONAL EARTH ROTATION AND REFERENCE SYSTEMS SERVICE (IERS)
+ #
+ # SERVICE INTERNATIONAL DE LA ROTATION TERRESTRE ET DES SYSTEMES DE REFERENCE
+ #
+ # SERVICE DE LA ROTATION TERRESTRE
+ # OBSERVATOIRE DE PARIS
+ # 61, Av. de l'Observatoire 75014 PARIS (France)
+-# Tel.      : 33 (0) 1 40 51 22 29
++# Tel.      : 33 (0) 1 40 51 22 26
+ # FAX       : 33 (0) 1 40 51 22 91
+-# Internet  : services.iers@obspm.fr
++# e-mail    : services.iers@obspm.fr
++# http://hpiers.obspm.fr/eop-pc
+ #
+-# Paris, 2 February 2011
++#                                               Paris, 5 January 2012
+ #
+-# Bulletin C 41
++#                                               Bulletin C 43
+ #
+-# To authorities responsible
+-# for the measurement and
+-# distribution of time
++#                                               To authorities responsible
++#                                               for the measurement and
++#                                               distribution of time
+ #
+-# INFORMATION ON UTC - TAI
+ #
+-# NO positive leap second will be introduced at the end of June 2011.
+-# The difference between Coordinated Universal Time UTC and the
+-# International Atomic Time TAI is :		
++#                                    UTC TIME STEP
++#                             on the 1st of July 2012
+ #
+-# from 2009 January 1, 0h UTC, until further notice : UTC-TAI = -34 s
+ #
+-# Leap seconds can be introduced in UTC at the end of the months of December
+-# or June,  depending on the evolution of UT1-TAI. Bulletin C is mailed every
+-# six months, either to announce a time step in UTC, or to confirm that there
+-# will be no time step at the next possible date.
++#  A positive leap second will be introduced at the end of June 2012.
++#  The sequence of dates of the UTC second markers will be:
+ #
+-# Daniel GAMBIS
+-# Head			
+-# Earth Orientation Center of the IERS
+-# Observatoire de Paris, France
++#                           2012 June 30,     23h 59m 59s
++#                           2012 June 30,     23h 59m 60s
++#                           2012 July  1,      0h  0m  0s
++#
++#  The difference between UTC and the International Atomic Time TAI is:
++#
++#   from 2009 January 1, 0h UTC, to 2012 July 1  0h UTC  : UTC-TAI = - 34s
++#   from 2012 July 1,    0h UTC, until further notice    : UTC-TAI = - 35s
++#
++#  Leap seconds can be introduced in UTC at the end of the months of December
++#  or June, depending on the evolution of UT1-TAI. Bulletin C is mailed every
++#  six months, either to announce a time step in UTC or to confirm that there
++#  will be no time step at the next possible date.
++#
++#
++#
++#                                               Daniel GAMBIS
++#                                               Head
++#                                               Earth Orientation Center of IERS
++#                                               Observatoire de Paris, France
diff --git a/tzdata.spec b/tzdata.spec
index 7cb4598..dacd5a2 100644
--- a/tzdata.spec
+++ b/tzdata.spec
@@ -3,7 +3,7 @@ Name: tzdata
 Version: 2011n
 %define tzdata_version 2011n
 %define tzcode_version 2011i
-Release: 2%{?dist}
+Release: 3%{?dist}
 License: Public Domain
 Group: System Environment/Base
 URL: ftp://munnari.oz.au/pub/
@@ -17,6 +17,7 @@ Source0: tzdata-base-0.tar.bz2
 Source1: ftp://elsie.nci.nih.gov/pub/tzdata%{tzdata_version}.tar.gz
 Source2: ftp://elsie.nci.nih.gov/pub/tzcode%{tzcode_version}.tar.gz
 # __decl_patches
+Patch0: tzdata-2011n-leapsec.patch
 # __end
 
 BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
@@ -51,6 +52,7 @@ sed -e 's|@objpfx@|'`pwd`'/obj/|' \
     -e 's|@datadir@|%{_datadir}|' \
   Makeconfig.in > Makeconfig
 # __apply_patches
+%patch0 -d tzdata%{tzdata_version}
 # __end
 
 mkdir javazic
@@ -113,6 +115,9 @@ rm -rf %{buildroot}
 %{_datadir}/javazi
 
 %changelog
+* Tue Feb 21 2012 Petr Machata <pmachata@redhat.com> - 2011n-3
+- Add a patch for the leap second that will occur this summer
+
 * Thu Nov  3 2011 Petr Machata <pmachata@redhat.com> - 2011n-2
 - Fix building of Java zones.  Patch by Deepak Bhole