diff --git a/src/vieval/__main__.py b/src/vieval/__main__.py
index fc1ca02..e522cda 100644
--- a/src/vieval/__main__.py
+++ b/src/vieval/__main__.py
@@ -1,5 +1,7 @@
 import spacy
+import nltk
 
+nltk.download('punkt_tab')
 try:
     spacy.load("en_core_web_sm")
 except OSError: