diff --git a/xCAT-client-2.0/bin/pping b/xCAT-client-2.0/bin/pping
index 0d464e178..13194484f 100755
--- a/xCAT-client-2.0/bin/pping
+++ b/xCAT-client-2.0/bin/pping
@@ -12,7 +12,9 @@ use lib "$::XCATROOT/lib/perl";
 
 use IO::Socket::SSL;
 use XML::Simple;
-$XML::Simple::PREFERRED_PARSER='XML::Parser';
+if ($^O =~ /^linux/i) {
+	$XML::Simple::PREFERRED_PARSER='XML::Parser';
+}
 use Data::Dumper;
 use IO::Handle;
 use IO::Select;