diff --git a/workflows/pr_gate/Jenkinsfile b/workflows/pr_gate/Jenkinsfile
index d745960..e455467 100644
--- a/workflows/pr_gate/Jenkinsfile
+++ b/workflows/pr_gate/Jenkinsfile
@@ -1,8 +1,8 @@
-@Library('my_library') _
+def lib = library("my_library@$BRANCH_NAME")
 node{
     timestamps{
-        def manifest = new pipeline.common.Manifest()
-        def unit_test = new pipeline.rackhd.source_code.UnitTest()
+        def manifest = new lib.pipeline.common.Manifest()
+        def unit_test = new lib.pipeline.rackhd.source_code.UnitTest()
     
         manifest.downloadManifest("https://dl.bintray.com/rackhd/binary/master-20170806","master-20170806")
         stash name: "prgate_manifest", includes: "master-20170806"