diff --git a/mtr.spec b/mtr.spec
index 2343cd0..905a3ac 100644
--- a/mtr.spec
+++ b/mtr.spec
@@ -62,10 +62,10 @@ make %{?_smp_mflags}
 rm -rf $RPM_BUILD_ROOT
 mkdir -p $RPM_BUILD_ROOT/usr/{X11R6/bin,bin,sbin,share/pixmaps}
 mkdir -p $RPM_BUILD_ROOT/%{_mandir}/man8
-install -m 4755 mtr $RPM_BUILD_ROOT%{_sbindir}/mtr
+install -m 0755 mtr $RPM_BUILD_ROOT%{_sbindir}/mtr
 make DESTDIR=$RPM_BUILD_ROOT install
 
-install -m 4755 xmtr $RPM_BUILD_ROOT/usr/X11R6/bin
+install -m 0755 xmtr $RPM_BUILD_ROOT/usr/X11R6/bin
 install -m 644 img/mtr_icon.xpm $RPM_BUILD_ROOT/usr/share/pixmaps
 mkdir -p $RPM_BUILD_ROOT/%{_sysconfdir}/security/console.apps
 install -m 644 %{SOURCE1} $RPM_BUILD_ROOT/%{_sysconfdir}/security/console.apps/xmtr