--- a/contrib/mercurial.spec	Mon Jun 25 21:23:24 2007 -0500
+++ b/contrib/mercurial.spec	Sat Jun 02 12:42:47 2007 +0100
@@ -24,7 +24,7 @@
 python setup.py build
 
 %install
-python setup.py install --root $RPM_BUILD_ROOT
+python setup.py install --root $RPM_BUILD_ROOT --prefix %{_prefix}
 
 %clean
 rm -rf $RPM_BUILD_ROOT