diff --git a/Jenkinsfile b/Jenkinsfile
index 9d93f96..942b5b9 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -10,11 +10,11 @@ pipeline{
             steps{
                 sh '''#!/bin/bash
                       curl -OL https://git.wmi.amu.edu.pl/s434780/ium_434780/src/branch/master/data.csv
-                      head -n -1 data.csv | shuf > data.csv.shuf
-                      wc -l data.csv
-                      head -n 500 data.csv.shuf > test.csv
-                      head -n 500 data.csv.shuf | tail -n 2006 > dev.csv
-                      tail -n +501 data.csv.shuf > train.csv
+                      head -n -1 data.csv | shuf > data1.csv.shuf
+                      wc -l data1.csv
+                      head -n 500 data1.csv.shuf > test.csv
+                      head -n 500 data1.csv.shuf | tail -n 2006 > dev.csv
+                      tail -n +501 data1.csv.shuf > train.csv
                       wc -l *.csv '''
             }
         }