diff --git a/tqtinterface.spec b/tqtinterface.spec
index c216e01..d6e7970 100644
--- a/tqtinterface.spec
+++ b/tqtinterface.spec
@@ -37,29 +37,29 @@ cmake \
 -DCMAKE_INSTALL_PREFIX=%{buildroot}%{trinity_dir} -DMAN_INSTALL_DIR=%{buildroot}%{trinity_dir}/man \
 -DBUILD_ALL="ON" \
 -DQT_VERSION=3 \
--DPKG_CONFIG_PATH=%{trinity_dir}%_libdir/pkgconfig \
+-DPKG_CONFIG_PATH=%{trinity_dir}/lib64/pkgconfig \
 ../%{name}-%{version}/
-export LD_LIBRARY_PATH=%{trinity_dir}%_libdir:$LD_LIBRARY_PATH
+export LD_LIBRARY_PATH=%{trinity_dir}/lib64:$LD_LIBRARY_PATH
 make %{?_smp_mflags}
 
 %install
 cd ../tqt.build/
-export LD_LIBRARY_PATH=%{trinity_dir}%_libdir:$LD_LIBRARY_PATH
+export LD_LIBRARY_PATH=%{trinity_dir}/lib64:$LD_LIBRARY_PATH
 make install 
 
 export buildroot=%buildroot 
-sed -i "s#$buildroot##g" %buildroot%trinity_dir%_libdir/*.la
-sed -i "s#$buildroot##g" %buildroot%trinity_dir%_libdir/pkgconfig/*.pc
+sed -i "s#$buildroot##g" %buildroot%trinity_dir/lib64/*.la
+sed -i "s#$buildroot##g" %buildroot%trinity_dir/lib64/pkgconfig/*.pc
 %check
 
 
 %files 
 %{trinity_dir}/bin/*
-%{trinity_dir}%_libdir/*
+%{trinity_dir}/lib64/*
 
 %files devel
 %{trinity_dir}/bin/*
-%{trinity_dir}%_libdir/*
+%{trinity_dir}/lib64/*
 %{trinity_dir}/include/*
 
 %changelog