diff --git a/scripts/is_cairo_quine.py b/scripts/is_cairo_quine.py
old mode 100644
new mode 100755
index 9dd219b..50618ab
--- a/scripts/is_cairo_quine.py
+++ b/scripts/is_cairo_quine.py
@@ -1,10 +1,12 @@
+#!/usr/bin/env python3
+
 import sys
 import subprocess
 import re
 
 def main():
     if len(sys.argv) != 2:
-        print("Usage: scarb test | python is_cairo_quine.py <filename>")
+        print("Usage: python is_cairo_quine.py <filename>")
         sys.exit(1)
 
     filename = sys.argv[1]