diff --git a/Jenkinsfile_dataset_stats b/Jenkinsfile_dataset_stats
index 9ebc346..d5dff92 100644
--- a/Jenkinsfile_dataset_stats
+++ b/Jenkinsfile_dataset_stats
@@ -1,17 +1,20 @@
 pipeline {
     agent any
-
+    properties([parameters([
+        buildSelector(
+            defaultSelector: lastSuccessful(),
+            description: 'Which build to use for copying artifacts',
+            name: 'BUILD_SELECTOR')
+    ])])
     stages {
         stage('copy artifacts') {
             steps {
-                copyArtifacts fingerprintArtifacts: true, projectName: 's470607-create-dataset', selector: lastSuccessful()
+                copyArtifacts fingerprintArtifacts: true, projectName: 's470607-create-dataset', selector: buildParameter('BUILD_SELECTOR')
             }
         }
         stage('stats') {
             steps {
-                sh 'wc -l train.csv > stats.txt'
-                sh 'wc -l test.csv >> stats.txt'
-                sh 'wc -l valid.csv >> stats.txt'
+                sh 'chmod +x dataset-stats.sh'
             }
         }
         stage('archive artifacts') {
diff --git a/dataset-stats.sh b/dataset-stats.sh
new file mode 100644
index 0000000..bae7856
--- /dev/null
+++ b/dataset-stats.sh
@@ -0,0 +1,5 @@
+#!/bin/bash
+
+sh 'wc -l train.csv > stats.txt'
+sh 'wc -l test.csv >> stats.txt'
+sh 'wc -l valid.csv >> stats.txt'