diff --git a/perl-xCAT/xCAT/InstUtils.pm b/perl-xCAT/xCAT/InstUtils.pm
index 18906d34c..4f7e053bd 100644
--- a/perl-xCAT/xCAT/InstUtils.pm
+++ b/perl-xCAT/xCAT/InstUtils.pm
@@ -73,7 +73,7 @@ sub getnimprime
 
     my $nimprime = xCAT::Utils->get_site_Master();
     my $sitetab  = xCAT::Table->new('site');
-    (my $et) = $sitetab->getAttribs({key => "NIMprime"}, 'value');
+    (my $et) = $sitetab->getAttribs({key => "nimprime"}, 'value');
     if ($et and $et->{value})
     {
         $nimprime = $et->{value};