diff --git a/xCAT-probe/debian/control b/xCAT-probe/debian/control
index e61da9c6c..def2abb1b 100644
--- a/xCAT-probe/debian/control
+++ b/xCAT-probe/debian/control
@@ -8,4 +8,8 @@ Standards-Version: 3.7.2
 Package: xcat-probe
 Architecture: all
 Depends: ${perl:Depends}
-Description: Provides a toolkits to help probe all the possible issues in xCAT 
+
+#Sub-command 'xcatmn' need tools tftp, nslookup, wget. 
+Suggests: wget, dnsutils, tftp-hpa
+
+Description: Provides a toolkit to help probe all the possible issues in xCAT 
diff --git a/xCAT-probe/xCAT-probe.spec b/xCAT-probe/xCAT-probe.spec
index 4748b1156..26e5d5404 100644
--- a/xCAT-probe/xCAT-probe.spec
+++ b/xCAT-probe/xCAT-probe.spec
@@ -16,6 +16,13 @@ BuildRoot: /var/tmp/%{name}-%{version}-%{release}-root
 BuildArch: noarch
 %endif
 
+%ifos linux
+#Below tools are required by sub-command 'xcatmn' 
+Requires: /usr/bin/nslookup
+Requires: /usr/bin/tftp
+Requires: /usr/bin/wget
+%endif
+
 Provides: xCAT-probe = %{version}
 
 %description