diff --git a/libupnp.spec b/libupnp.spec
index 4cb38b1..d78d204 100644
--- a/libupnp.spec
+++ b/libupnp.spec
@@ -1,12 +1,13 @@
 Version: 1.4.0
 Summary: Universal Plug and Play (UPnP) SDK
 Name: libupnp
-Release: 1%{?dist}
+Release: 2%{?dist}
 License: BSD
 Group: System Environment/Libraries
 URL: http://www.libupnp.org/
 Source: http://puzzle.dl.sourceforge.net/sourceforge/pupnp/%{name}-%{version}.tar.gz
 Source1: http://puzzle.dl.sourceforge.net/sourceforge/pupnp/UPnP_1_4_0_Programming_Guide.pdf
+Patch0: libupnparch.diff
 Buildroot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 
 %define docdir %{_docdir}/%{name}-%{version}-%{release}
@@ -28,6 +29,7 @@ the UPnP SDK libraries.
 
 %prep
 %setup -q
+%patch0 -p1
 
 #chmod 644 {LICENSE,README}
 
@@ -80,6 +82,9 @@ install -D -m0644 %{SOURCE1} %{buildroot}%{docdeveldir}/UPnP_1_4_0_Programming_G
 rm -rf %{buildroot}
 
 %changelog
+* Fri Jun 23 2006 Eric Tanguy <eric.tanguy@univ-nantes.fr> - 1.4.0-2
+- Add a patch for x86_64 arch
+
 * Sun Jun 11 2006 Eric Tanguy <eric.tanguy@univ-nantes.fr> - 1.4.0-1
 - Update to 1.4.0
 
diff --git a/libupnparch.diff b/libupnparch.diff
new file mode 100644
index 0000000..7b8f5d1
--- /dev/null
+++ b/libupnparch.diff
@@ -0,0 +1,11 @@
+--- libupnp-1.4.0/upnp/src/api/upnptools.c	2006-06-06 07:37:44.000000000 +0200
++++ libupnp-1.4.0/upnp/src/api/upnptools.c	2006-06-23 23:06:21.000000000 +0200
+@@ -387,7 +387,7 @@
+                         const char *Arg,
+                         ... )
+ {
+-    va_list ArgList=NULL;
++    va_list ArgList;
+     IXML_Document *out = NULL;
+ 
+     if( NumArg > 0 ) {