diff --git a/brltty.spec b/brltty.spec
index 80cf81d..3bed343 100644
--- a/brltty.spec
+++ b/brltty.spec
@@ -229,13 +229,13 @@ export PYTHONCOERCECLOCALE=0
 # First build everything with Python 2 support
 %configure $configure_opts PYTHON=%{__python2}
 # Parallel build seems broken, thus disabling it
-make %{?_smp_mflags}
+make
 
 %if 0%{?with_python3}
 # ... and then do it again for the Python 3 module
 pushd %{py3dir}
 %configure $configure_opts PYTHON=%{__python3}
-make %{?_smp_mflags}
+make
 popd
 %endif