diff --git a/perl-xCAT-2.0/perl-xCAT.spec b/perl-xCAT-2.0/perl-xCAT.spec
index 52c103f0e..510ecb64a 100644
--- a/perl-xCAT-2.0/perl-xCAT.spec
+++ b/perl-xCAT-2.0/perl-xCAT.spec
@@ -80,6 +80,7 @@ rm -rf $RPM_BUILD_ROOT
 %{prefix}
 
 %post
+%ifos linux
 if [ "$1" -gt 1 ]; then #Ugrade only, restart daemon and migrate settings
    if [ -x /etc/init.d/xcatd ]; then
       . /etc/profile.d/xcat.sh
@@ -114,7 +115,7 @@ if [ "$1" -gt 1 ]; then #Ugrade only, restart daemon and migrate settings
    fi
    fi
 fi
-
+%endif
 
 %changelog
 * Wed May 2 2007 - Norm Nott nott@us.ibm.com