diff --git a/lab8/Jenkinsfile_predict_artifact b/lab8/Jenkinsfile_predict_artifact
index 800f17b..a1b7b63 100644
--- a/lab8/Jenkinsfile_predict_artifact
+++ b/lab8/Jenkinsfile_predict_artifact
@@ -24,7 +24,7 @@ pipeline {
                 sh 'mkdir mlruns_s444417 && tar xvzf mlruns.tar.gz -C mlruns_s444417 --strip-components 1'
                 echo 'Model copied'
                 echo 'Making a prediction...'
-                sh 'echo ${params.INPUT} > input_example.json'
+                sh "echo ${params.INPUT} > input_example.json"
                 sh 'python3 predict_artifact.py'
                 echo 'Prediction made'
             }