diff --git a/linuxptp.spec b/linuxptp.spec
index 40a2926..3acf3fa 100644
--- a/linuxptp.spec
+++ b/linuxptp.spec
@@ -31,9 +31,6 @@ Supporting legacy APIs and other platforms is not a goal.
 %prep
 %setup -q -n %{name}
 
-# Comment everything out.
-sed 's/^[[:alnum:]]/#\0/' < default.cfg > ptp4l.conf
-
 %build
 make %{?_smp_mflags} \
 	INC="" \
@@ -43,8 +40,8 @@ make %{?_smp_mflags} \
 %install
 %makeinstall
 mkdir -p $RPM_BUILD_ROOT{%{_sysconfdir}/sysconfig,%{_unitdir}}
-install -m 644 -p ptp4l.conf $RPM_BUILD_ROOT%{_sysconfdir}
-install -m 644 -p -t $RPM_BUILD_ROOT%{_unitdir} %{SOURCE1} %{SOURCE2}
+install -m 644 -p default.cfg $RPM_BUILD_ROOT%{_sysconfdir}/ptp4l.conf
+install -m 644 -p %{SOURCE1} %{SOURCE2} $RPM_BUILD_ROOT%{_unitdir}
 
 echo 'OPTIONS="-f /etc/ptp4l.conf -i eth0"' > \
 	$RPM_BUILD_ROOT%{_sysconfdir}/sysconfig/ptp4l