diff --git a/units.spec b/units.spec
index 4faa6c4..85e66b7 100644
--- a/units.spec
+++ b/units.spec
@@ -35,12 +35,12 @@ autoreconf -fiv
 make %{?_smp_mflags}
 
 %install
-make install DESTDIR=$RPM_BUILD_ROOT 
+make install DESTDIR=%{buildroot} 
 
 # remove %%{buildroot} from the target of an absolute symlink
 ln -fsv %{_sharedstatedir}/units/currency.units %{buildroot}%{_datadir}/units
 
-gzip $RPM_BUILD_ROOT%{_infodir}/units.info
+gzip %{buildroot}%{_infodir}/units.info
 
 # provide a man page for units_cur as a symlink to units.1
 ln -s units.1 %{buildroot}%{_mandir}/man1/units_cur.1