diff --git a/PySudoku.pyw b/PySudoku.py
similarity index 99%
rename from PySudoku.pyw
rename to PySudoku.py
index fd2c2bc..d9f8a79 100644
--- a/PySudoku.pyw
+++ b/PySudoku.py
@@ -1195,4 +1195,4 @@ class App(Tk):
 
 if __name__ == "__main__":
     app = App(argv)
-    exit(app.mainloop())
\ No newline at end of file
+    exit(app.mainloop())