diff --git a/clalsadrv.spec b/clalsadrv.spec
index f6c138a..b889a30 100644
--- a/clalsadrv.spec
+++ b/clalsadrv.spec
@@ -2,7 +2,7 @@
 Summary:       ALSA driver C++ Library
 Name:          clalsadrv
 Version:       2.0.0
-Release:       3%{?dist}
+Release:       4%{?dist}
 License:       GPLv2+
 Group:         System Environment/Libraries
 URL:           http://kokkinizita.linuxaudio.org/
@@ -34,14 +34,14 @@ tools.
 cd libs
 sed -i -e "s|/sbin/ldconfig|# /sbin/ldconfig|g" \
        -e "s|-O2|%{optflags}|g" Makefile
-make %{?_smp_mflags}
+make %{?_smp_mflags} LIBDIR=%{_lib}
 
 %install
 rm -rf %{buildroot}
 mkdir -p %{buildroot}%{_libdir}
 mkdir -p %{buildroot}%{_includedir}
 cd libs
-make PREFIX=%{buildroot}%{_prefix} install
+make PREFIX=%{buildroot}%{_prefix} LIBDIR=%{_lib} install
 ln -s lib%{name}.so.2.0.0 %{buildroot}%{_libdir}/lib%{name}.so.2
 
 %post -p /sbin/ldconfig
@@ -57,6 +57,9 @@ ln -s lib%{name}.so.2.0.0 %{buildroot}%{_libdir}/lib%{name}.so.2
 %{_libdir}/lib%{name}.so
 
 %changelog
+* Mon Mar 05 2012 Dan Horák <dan[at]danny.cz> 2.0.0-4
+- fix build on 64-bit arches
+
 * Thu Feb 16 2012 Brendan Jones <brendan.jones.it@gmail.com> 2.0.0-3
 - Adjust license and correct symlink