diff --git a/python-mpmath.spec b/python-mpmath.spec
index 11b5788..20a04aa 100644
--- a/python-mpmath.spec
+++ b/python-mpmath.spec
@@ -44,7 +44,7 @@ This package contains the HTML documentation for %{name}.
 %prep
 %setup -q -n mpmath-all-%{version}
 %patch0 -p1 -b .buildfix
-# Convert line encodings 
+# Convert line encodings
 for doc in LICENSE CHANGES PKG-INFO README mpmath/tests/runtests.py; do
  sed "s|\r||g" $doc > $doc.new && \
  touch -r $doc $doc.new && \
@@ -63,11 +63,11 @@ done
 python setup.py build
 # Build documentation
 cd doc
-python build.py 
+python build.py
 
 %install
 rm -rf %{buildroot}
-python setup.py install -O1 --skip-build --root %{buildroot}
+python setup.py install --skip-build --root %{buildroot}
 # Get rid of python 3 version that fails to byte-compile
 rm %{buildroot}%{python_sitelib}/mpmath/libmp/exec_py3.py*