diff --git a/ipv6calc.spec b/ipv6calc.spec
index 70a1924..83aeea7 100644
--- a/ipv6calc.spec
+++ b/ipv6calc.spec
@@ -1,7 +1,7 @@
 Summary: 	IPv6 address format change and calculation utility
 Name: 		ipv6calc
 Version: 	0.49
-Release: 	1
+Release: 	2
 Group:		Applications/Text
 URL: 		http://www.deepspace6.net/projects/%{name}.html
 License: 	GNU GPL version 2
@@ -9,6 +9,7 @@ Source: 	ftp://ftp.bieringer.de/pub/linux/IPv6/ipv6calc/%{name}-%{version}.tar.g
 Requires:	krb5-libs
 BuildRequires:	krb5-devel
 BuildRoot:	%{_tmppath}/%{name}-%{version}-root
+Patch0:		ipv6calc-0.49-copy_struct.patch
 
 %description
 ipv6calc is a small utility which formats and calculates IPv6 addresses in
@@ -22,7 +23,7 @@ Many more format conversions are supported, see given URL for more.
 
 %prep
 %setup -q
-
+%patch0 -p1 -b .old
 %configure
 
 %build
@@ -56,6 +57,9 @@ rm -rf $RPM_BUILD_ROOT
 %{_mandir}/man8/*
 
 %changelog
+* Thu Sep 15 2005 Radek Vokal <rvokal@redhat.com> 0.49-2
+- smash stack fix in ipv6calc_copy
+
 * Thu Sep 15 2005 Radek Vokal <rvokal@redhat.com> 0.49-1
 - upgrade to 0.49