diff --git a/sympy.spec b/sympy.spec
index c89589b..0103b90 100644
--- a/sympy.spec
+++ b/sympy.spec
@@ -49,6 +49,10 @@ Requires:       python3-matplotlib
 Requires:       python3-mpmath
 Requires:       python3-pyglet
 
+# FIXME: Remove this once bz 1140413 is fixed.
+BuildRequires:  python3-six
+Requires:       python3-six
+
 %description -n python3-%{name}
 SymPy aims to become a full-featured computer algebra system (CAS)
 while keeping the code as simple as possible in order to be
@@ -84,9 +88,6 @@ HTML documentation for sympy.
 rm -rf sympy/mpmath doc/src/modules/mpmath
 rm -rf %{name}-%{version}/sympy/mpmath %{name}-%{version}/doc/src/module/mpmath
 
-# Make a copy for building the python3 version
-cp -a . %{py3dir}
-
 # Workaround for bz 1075826.  Remove this when that bug is resolved.
 mkdir -p doc/_build/html
 cp -p doc/src/_static/sympylogo.png doc
@@ -97,6 +98,10 @@ sed -e 's/import raises/&, XFAIL/' \
     -i sympy/polys/tests/test_polyroots.py
 sed -i '/^def test_nroots():/i@XFAIL' sympy/polys/tests/test_polytools.py
 
+# Make a copy for building the python3 version
+rm -rf %{py3dir}
+cp -a . %{py3dir}
+
 %build
 # Build the python2 version
 python2 setup.py build
@@ -192,6 +197,7 @@ popd
 - Add -is-tangent patch (bz 1135677)
 - Temporarily disable tests that fail due to mpmath bugs (bz 1127796)
 - Fix license handling
+- Add python3-six BR and R; see bz 1140413 for details
 
 * Sun Jun 08 2014 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 0.7.5-3
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_21_Mass_Rebuild