diff --git a/scripts/pipeline2.py b/scripts/pipeline2.py
index ec5d31c..fa3664c 100644
--- a/scripts/pipeline2.py
+++ b/scripts/pipeline2.py
@@ -6,13 +6,14 @@ import lxml.etree as lxml
 from constants import *
 
 arg_parser = argparse.ArgumentParser(description='Assign parsed Slovene strings to structures and generate lexicon.')
-arg_parser.add_argument('-intei', type=str, help='Parsed and manually edited TEI file')
-arg_parser.add_argument('-outstructures', type=str, help='Output structure file')
-arg_parser.add_argument('-outlexicon', type=str, help='Output lexicon file')
+arg_parser.add_argument('-intei', type=str, required=True, help='Parsed and manually edited TEI file')
+arg_parser.add_argument('-outlexicon', type=str, required=True, help='Output lexicon file')
+arg_parser.add_argument('-outstructures', type=str, required=True, help='Output structure file')
 arguments = arg_parser.parse_args()
+
 input_tei_file_name = arguments.intei
-output_structure_file_name = arguments.outstructures
 output_lexicon_file_name = arguments.outlexicon
+output_structure_file_name = arguments.outstructures
 
 def run_pipeline(input_tei_file_name, output_lexicon_file_name, output_structure_file_name):
     shutil.rmtree(TMP_DIRECTORY, True)