diff --git a/JenkinsfileCreateDataset b/JenkinsfileCreateDataset
index b7a5f82..e067d68 100644
--- a/JenkinsfileCreateDataset
+++ b/JenkinsfileCreateDataset
@@ -31,7 +31,6 @@ pipeline {
             steps {
                 checkout scmGit(
                     branches: [[name: '*/master']],
-                    extensions: [cleanBeforeChceckout()],
                     userRemoteConfigs: [[url: 'https://git.wmi.amu.edu.pl/s458023/ium_458023.git']]
                 )
             }