diff --git a/mock-0.4-unpackaged-files-fix.patch b/mock-0.4-unpackaged-files-fix.patch
new file mode 100644
index 0000000..de3d0b4
--- /dev/null
+++ b/mock-0.4-unpackaged-files-fix.patch
@@ -0,0 +1,11 @@
+--- mock-0.4/mock.py.rpmbuild-fix	2006-01-18 17:05:43.000000000 -0500
++++ mock-0.4/mock.py	2006-01-18 17:06:14.000000000 -0500
+@@ -311,7 +311,7 @@
+         srpmfn = os.path.basename(srpm_in)
+         # run with --nodeps b/c of the check above we know we have our build
+         # deps satisfied.
+-        cmd = "%s -c 'rpmbuild --rebuild  --target %s --nodeps %s' %s" % (
++        cmd = "cd /;%s -c 'rpmbuild --rebuild  --target %s --nodeps %s' %s" % (
+              self.config['runuser'], self.target_arch, srpm_in, 
+              self.config['chrootuser'])
+         
diff --git a/mock.spec b/mock.spec
index e0a6107..eceece0 100644
--- a/mock.spec
+++ b/mock.spec
@@ -1,7 +1,7 @@
 Summary: Builds packages inside chroots
 Name: mock
 Version: 0.4
-Release: 2%{?dist}
+Release: 3%{?dist}
 License: GPL
 Group: Development/Tools
 Source: http://fedoraproject.org/projects/mock/releases/%{name}-%{version}.tar.gz
@@ -10,6 +10,7 @@ BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 Requires: python, yum >= 2.2.1
 Requires(pre): shadow-utils
 BuildRequires: libselinux-devel
+Patch0: mock-0.4-unpackaged-files-fix.patch
 
 %description
 Mock takes a srpm and builds it in a chroot
@@ -17,6 +18,8 @@ Mock takes a srpm and builds it in a chroot
 %prep
 %setup -q
 
+%patch0 -p1 -b .unpackaged-files-fix
+
 %build
 make
 
@@ -65,6 +68,9 @@ fi
 
 
 %changelog
+* Wed Jan 18 2006 Dan Williams <dcbw@redhat.com> - 0.4-3
+- Add unpackaged files fix from RH#163576 (Adrian Reber)
+
 * Tue Aug 16 2005 Matthias Saou <http://freshrpms.net/> 0.4-2
 - Fix ?fedora check when not defined (would fail to parse).