diff --git a/xCAT/xCAT.spec b/xCAT/xCAT.spec
index 1a5f47aca..351281f8b 100644
--- a/xCAT/xCAT.spec
+++ b/xCAT/xCAT.spec
@@ -105,6 +105,7 @@ cp LICENSE.html $RPM_BUILD_ROOT/%{prefix}/share/doc/packages/xCAT
 %else
 . /etc/profile.d/xcat.sh
 %endif
+touch /etc/xCATMN
 if [ "$1" = "1" ]; then #Only if installing for the first time..
 $RPM_INSTALL_PREFIX0/sbin/xcatconfig -i
 else
@@ -120,3 +121,7 @@ fi
 /install/postscripts
 /install/prescripts
 %defattr(-,root,root)
+%postun
+# removes MN file
+  rm /etc/xCATMN
+