diff --git a/libftdi.spec b/libftdi.spec
index 3a07ff3..5a77f51 100644
--- a/libftdi.spec
+++ b/libftdi.spec
@@ -75,7 +75,7 @@ export CMAKE_PREFIX_PATH=/usr
 
 mkdir build-py3 && pushd build-py3
 %{cmake} -DPython_ADDITIONAL_VERSIONS=%{python3_version} ..
-%make_build %{?_smp_mflags}
+%make_build
 popd
 
 # Fix python sheband lines