diff --git a/perl-Math-BigInt-FastCalc.spec b/perl-Math-BigInt-FastCalc.spec
index 85341d1..ee90104 100644
--- a/perl-Math-BigInt-FastCalc.spec
+++ b/perl-Math-BigInt-FastCalc.spec
@@ -46,12 +46,11 @@ This Perl module provides support for fast big integer calculations.
 %setup -q -n Math-BigInt-FastCalc-%{cpan_version}
 
 %build
-perl Makefile.PL INSTALLDIRS=vendor NO_PACKLIST=1 OPTIMIZE="$RPM_OPT_FLAGS" \
-                 NO_PERLLOCAL=1
-%make_build
+perl Makefile.PL INSTALLDIRS=vendor NO_PACKLIST=1 NO_PERLLOCAL=1 OPTIMIZE="$RPM_OPT_FLAGS"
+%{make_build}
 
 %install
-%make_install
+%{make_install}
 find $RPM_BUILD_ROOT -type f -name '*.bs' -size 0 -delete
 %{_fixperms} $RPM_BUILD_ROOT/*