diff --git a/similarities/lsi_similarities.py b/similarities/lsi_similarities.py
index 57a2d0d..7bd26d0 100755
--- a/similarities/lsi_similarities.py
+++ b/similarities/lsi_similarities.py
@@ -1,3 +1,4 @@
+#!/usr/bin/env python3
 import pandas as pd
 import fire
 from pathlib import Path