diff --git a/hdf.spec b/hdf.spec
index ff7ad65..39b37a7 100644
--- a/hdf.spec
+++ b/hdf.spec
@@ -204,7 +204,7 @@ mv h4config.h.tmp h4config.h
 popd
 
 #Fixup headers and scripts for multiarch
-%if %{_lib} == lib64
+%if "%{_lib}" == "lib64"
 #sed -i -e s/H5pubconf.h/H5pubconf-64.h/ %{buildroot}%{_includedir}/H5public.h
 #mv %{buildroot}%{_includedir}/H5pubconf.h \
    #%{buildroot}%{_includedir}/H5pubconf-64.h