diff --git a/.gitignore b/.gitignore
index aaf9455..fce75f5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 /wt-3.2.2-p1-free.tar.gz
 /wt-3.2.3-free.tar.gz
 /wt-3.3.0-free.tar.gz
+/wt-3.3.0-free.tar.xz
diff --git a/sources b/sources
index 7efabe4..9b8bb89 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-506c639db4c7e7e0880cb34d931eda12  wt-3.3.0-free.tar.gz
+13d8bcefb52972c2f3ebf328a26f20ee  wt-3.3.0-free.tar.xz
diff --git a/wt-generate-tarball.sh b/wt-generate-tarball.sh
old mode 100755
new mode 100644
index 4605c69..1cede7f
--- a/wt-generate-tarball.sh
+++ b/wt-generate-tarball.sh
@@ -9,8 +9,8 @@ pushd $tmp
 pushd $NAME-$VERSION/src/Wt/Dbo/backend
 rm -r ibpp
 popd # backend
-tar -czvf $NAME-$VERSION-free.tar.gz $NAME-$VERSION
+tar -cJvf $NAME-$VERSION-free.tar.xz $NAME-$VERSION
 popd # tmp
-mv $tmp/$NAME-$VERSION-free.tar.gz .
+mv $tmp/$NAME-$VERSION-free.tar.xz .
 rm -r $tmp
 
diff --git a/wt.spec b/wt.spec
index 9c42c59..10383ec 100644
--- a/wt.spec
+++ b/wt.spec
@@ -6,7 +6,7 @@
 
 Name:           wt
 Version:        3.3.0
-Release:        1%{?dist}
+Release:        2%{?dist}
 Summary:        C++ library for developing web applications
 
 Group:          Development/Libraries
@@ -16,7 +16,7 @@ URL:            http://www.webtoolkit.eu/wt
 # Following archive was made from upstream tarball downloaded from
 #  http://citylan.dl.sourceforge.net/project/witty/wt/3.3.0/wt-3.3.0.tar.gz
 # by running ./wt-generate-tarball.sh 3.3.0 from tarball's directory
-Source0:        %{name}-%{version}-free.tar.gz
+Source0:        %{name}-%{version}-free.tar.xz
 Source1:        %{name}-%{version}-PACKAGE-LICENSING
 # wt toolkit contains bundled non-free library (IBPP) that we cannot ship.
 # Therefore we use this script to remove its code before shipping it.
@@ -237,6 +237,9 @@ popd
 %{_defaultdocdir}/%{name}-doc-%{version}/examples/*
 
 %changelog
+* Wed Jun 26 2013 Michal Minar <miminar@redhat.com> 3.3.0-2
+- Using LZMA2 compression for source archive.
+
 * Thu Jun 20 2013 Michal Minar <miminar@redhat.com> 3.3.0-1
 - Version 3.3.0