diff --git a/groff.spec b/groff.spec
index b9fd4d3..2c7a13d 100644
--- a/groff.spec
+++ b/groff.spec
@@ -110,7 +110,7 @@ done
 #PATH=$PATH:%{_prefix}/X11R6/bin
 #autoconf
 %configure --enable-multibyte
-make %{?_smp_mflags}
+make
 (cd doc && makeinfo groff.texinfo)
 %if %{with_x}
 cd src/xditview