diff --git a/SPECS/efitools.spec b/SPECS/efitools.spec
index 3a05a66..d774249 100644
--- a/SPECS/efitools.spec
+++ b/SPECS/efitools.spec
@@ -40,7 +40,7 @@ secure variables of the UEFI firmware, usually in the NVRAM area.
 
 %build
 %set_build_flags
-%make_build
+%__make -O
 
 %install
 %make_install DOCDIR=%{buildroot}%{_docdir}/%{name}/ CFLAGS="%{optflags}"