diff --git a/Jenkinsfile b/Jenkinsfile
index c69b616..f3c23f2 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -18,7 +18,7 @@ pipeline {
                                 name: 'KAGGLE_KEY'
                             ),
                             string(
-                              defaultValue: null,
+                              defaultValue: '',
                               description: 'Set cutoff',
                               name: 'CUTOFF',
                               trim: false
diff --git a/s487175-create-dataset-script.py b/s487175-create-dataset-script.py
index 2153b46..93e297c 100644
--- a/s487175-create-dataset-script.py
+++ b/s487175-create-dataset-script.py
@@ -11,9 +11,10 @@ if cutoff is None:
     print("CUTOFF parameter not set.")
     diamonds
 else:
-    cutoff = int(os.environ['CUTOFF'])
+    cutoff = int(cutoff)
     diamonds = diamonds[:cutoff]
     diamonds.to_csv('diamonds.csv', index=False) #nadpisanie pliku
+    diamonds
 
 # %%
 #przydzielanie nazwy kolumny z id