diff --git a/ponysay b/ponysay.py
similarity index 100%
rename from ponysay
rename to ponysay.py
diff --git a/setup.py b/setup.py
index db5b0d1..24bd570 100755
--- a/setup.py
+++ b/setup.py
@@ -371,7 +371,7 @@ class Setup():
             (fileout, filein) = (None, None)
             try:
                 fileout = open('ponysay.install', 'wb+')
-                filein = open('ponysay', 'rb')
+                filein = open('ponysay.py', 'rb')
                 data = filein.read().decode('utf-8', 'replace')
                 
                 if '#!/usr/bin/env python3' in data: