diff --git a/gfan.spec b/gfan.spec
index 2d2b791..1049ade 100644
--- a/gfan.spec
+++ b/gfan.spec
@@ -19,6 +19,7 @@ BuildRequires:  gcc-c++
 BuildRequires:  ghostscript-tools-dvipdf
 BuildRequires:  glibc-langpack-en
 BuildRequires:  gmp-devel
+BuildRequires:  make
 BuildRequires:  tex(latex)
 BuildRequires:  tex(ulem.sty)
 BuildRequires:  TOPCOM
@@ -81,7 +82,7 @@ rm -f src/minkowskisum.cpp.orig
 rm -f homepage/Makefile
 
 %build
-make %{?_smp_mflags} CC=gcc CXX=g++ \
+%make_build CC=gcc CXX=g++ \
   OPTFLAGS="%{optflags} -DGMPRATIONAL -I%{_includedir}/cddlib" \
   PREFIX=%{_prefix} \
   SOPLEX_LINKOPTIONS="-Wl,--as-needed $RPM_LD_FLAGS"