diff --git a/lapack.spec b/lapack.spec
index 6436a82..113f785 100644
--- a/lapack.spec
+++ b/lapack.spec
@@ -432,15 +432,19 @@ cp -a lapack.pc.in %{buildroot}%{_libdir}/pkgconfig/lapack.pc
 sed -i 's|@CMAKE_INSTALL_FULL_LIBDIR@|%{_libdir}|g' %{buildroot}%{_libdir}/pkgconfig/lapack.pc
 sed -i 's|@CMAKE_INSTALL_FULL_INCLUDEDIR@|%{_includedir}|g' %{buildroot}%{_libdir}/pkgconfig/lapack.pc
 sed -i 's|@LAPACK_VERSION@|%{version}|g' %{buildroot}%{_libdir}/pkgconfig/lapack.pc
+%if 0%{?arch64}
 cp -a %{buildroot}%{_libdir}/pkgconfig/lapack.pc %{buildroot}%{_libdir}/pkgconfig/lapack64.pc
 sed -i 's|-llapack|-llapack64_|g' %{buildroot}%{_libdir}/pkgconfig/lapack64.pc
 sed -i 's|blas|blas64|g' %{buildroot}%{_libdir}/pkgconfig/lapack64.pc
+%endif
 cp -a BLAS/blas.pc.in %{buildroot}%{_libdir}/pkgconfig/blas.pc
 sed -i 's|@CMAKE_INSTALL_FULL_LIBDIR@|%{_libdir}|g' %{buildroot}%{_libdir}/pkgconfig/blas.pc
 sed -i 's|@CMAKE_INSTALL_FULL_INCLUDEDIR@|%{_includedir}|g' %{buildroot}%{_libdir}/pkgconfig/blas.pc
 sed -i 's|@LAPACK_VERSION@|%{version}|g' %{buildroot}%{_libdir}/pkgconfig/blas.pc
+%if 0%{?arch64}
 cp -a %{buildroot}%{_libdir}/pkgconfig/blas.pc %{buildroot}%{_libdir}/pkgconfig/blas64.pc
 sed -i 's|-lblas|-lblas64_|g' %{buildroot}%{_libdir}/pkgconfig/blas64.pc
+%endif
 cp -a LAPACKE/lapacke.pc.in %{buildroot}%{_libdir}/pkgconfig/lapacke.pc
 sed -i 's|@CMAKE_INSTALL_FULL_LIBDIR@|%{_libdir}|g' %{buildroot}%{_libdir}/pkgconfig/lapacke.pc
 sed -i 's|@CMAKE_INSTALL_FULL_INCLUDEDIR@|%{_includedir}/lapacke|g' %{buildroot}%{_libdir}/pkgconfig/lapacke.pc
@@ -449,9 +453,11 @@ cp -a CBLAS/cblas.pc.in %{buildroot}%{_libdir}/pkgconfig/cblas.pc
 sed -i 's|@CMAKE_INSTALL_FULL_LIBDIR@|%{_libdir}|g' %{buildroot}%{_libdir}/pkgconfig/cblas.pc
 sed -i 's|@CMAKE_INSTALL_FULL_INCLUDEDIR@|%{_includedir}/cblas|g' %{buildroot}%{_libdir}/pkgconfig/cblas.pc
 sed -i 's|@LAPACK_VERSION@|%{version}|g' %{buildroot}%{_libdir}/pkgconfig/cblas.pc
+%if 0%{?arch64}
 cp -a %{buildroot}%{_libdir}/pkgconfig/cblas.pc %{buildroot}%{_libdir}/pkgconfig/cblas64.pc
 sed -i 's|-lcblas|-lcblas64_|g' %{buildroot}%{_libdir}/pkgconfig/cblas64.pc
 sed -i 's|Requires.private: blas|Requires.private: blas64|g' %{buildroot}%{_libdir}/pkgconfig/cblas64.pc
+%endif
 
 %post -p /sbin/ldconfig