diff --git a/jenkins/client/approved_scripts.yml b/jenkins/client/approved_scripts.yml
index daafadd..7d470b6 100644
--- a/jenkins/client/approved_scripts.yml
+++ b/jenkins/client/approved_scripts.yml
@@ -127,6 +127,7 @@
         - staticMethod org.codehaus.groovy.runtime.ScriptBytecodeAdapter bitwiseNegate java.lang.Object
         - staticMethod org.codehaus.groovy.runtime.DefaultGroovyMethods toBoolean java.lang.Boolean
         - staticMethod org.codehaus.groovy.runtime.DefaultGroovyMethods getAt java.lang.Object java.lang.String
+        - staticMethod org.codehaus.groovy.runtime.DefaultGroovyMethods multiply java.lang.String java.lang.Number
         - method java.io.File listFiles
         - method java.lang.String concat java.lang.String
         - method org.jenkinsci.plugins.workflow.steps.FlowInterruptedException getCauses