diff --git a/pkgs/development/python-modules/rhpl/builder.sh b/pkgs/development/python-modules/rhpl/builder.sh
index 5c56b70c24f..b37e9081832 100644
--- a/pkgs/development/python-modules/rhpl/builder.sh
+++ b/pkgs/development/python-modules/rhpl/builder.sh
@@ -4,8 +4,9 @@ rpm2cpio $src | cpio -idv
 tar xfvj rhpl-*.tar.bz2
 rm rhpl-*.tar.bz2
 cd rhpl-*
-sed -i -e "s@/usr/include/\$(PYTHON)@$python/include/python2.6@" \
-       -e "s@PYTHONLIBDIR = /usr/\$(LIBDIR)/\$(PYTHON)/site-packages@PYTHONLIBDIR = $out/lib/python2.6/site-packages@" Makefile.inc
+incl=$(echo $python/include/python2.*)
+sed -i -e "s@/usr/include/\$(PYTHON)@$incl@" \
+       -e "s@PYTHONLIBDIR = /usr/\$(LIBDIR)/\$(PYTHON)/site-packages@PYTHONLIBDIR = $(toPythonPath $out)@" Makefile.inc
 sed -i -e "s@/usr/bin/install@install@g" \
        -e "s@\$(DESTDIR)/usr/share/locale@$out/share/locale@" po/Makefile       
 make PREFIX=$out