diff --git a/1.580.1.1/init.groovy b/1.580.1.1/init.groovy
new file mode 100644
index 0000000..83c3a3d
--- /dev/null
+++ b/1.580.1.1/init.groovy
@@ -0,0 +1,9 @@
+import hudson.model.*;
+import jenkins.model.*;
+
+
+Thread.start {
+      sleep 10000
+      println "--> setting agent port for jnlp"
+      Jenkins.instance.setSlaveAgentPort(50000)
+}