diff --git a/lib/dmtf_tools_utils.robot b/lib/dmtf_tools_utils.robot
index 6f370a0..2404dee 100644
--- a/lib/dmtf_tools_utils.robot
+++ b/lib/dmtf_tools_utils.robot
@@ -8,20 +8,19 @@
 
 # ignore_err controls Shell Cmd behavior.
 ${ignore_err}     ${0}
-${stable_branch}  master
 
 *** Keywords ***
 
 Download DMTF Tool
     [Documentation]  Git clone tool.
-    [Arguments]      ${rsv_dir_path}  ${rsv_github_url}
+    [Arguments]      ${rsv_dir_path}  ${rsv_github_url}  ${branch_name}
 
     # Description of arguments:
     # rsv_dir_path    Directory path for rsv tool (e.g. "Redfish-Service-Validator").
     # rsv_github_url  Github URL link(e.g "https://github.com/DMTF/Redfish-Service-Validator").
 
     ${cmd_buf}  Catenate  rm -rf ${rsv_dir_path} ;
-    ...  git clone --branch ${stable_branch} ${rsv_github_url} ${rsv_dir_path}
+    ...  git clone --branch ${branch_name} ${rsv_github_url} ${rsv_dir_path}
     ${rc}  ${output}=  Shell Cmd  ${cmd_buf}