diff --git a/gnu-efi.spec b/gnu-efi.spec
index c0fcd7a..43ebaf5 100644
--- a/gnu-efi.spec
+++ b/gnu-efi.spec
@@ -41,7 +41,8 @@ environment.
 ## DO NOT ADD RPM OPT FLAGS! THIS DOES NOT BUILD AGAINST GLIBC
 ##
 ##########################
-%make_build LINUX_HEADERS=%{_prefix}/src/linux
+# Trick spec-cleaner in avoiding a make_build expansion
+%{_bindir}/make %{?_smp_mflags} LINUX_HEADERS=%{_prefix}/src/linux
 
 %install
 make install INSTALLROOT=%{buildroot} LIBDIR=%{_libdir} PREFIX=%{_prefix}