diff --git a/it/f.py b/it/f.py
index b6f6b0c..c8c9b96 100644
--- a/it/f.py
+++ b/it/f.py
@@ -1,6 +1,8 @@
-def main(argc, argv, buffer):
-	if(argc > 2):
+def main(buffer, argv):
+	if len(argv) > 2:
 		print("?")
+	elif len(argv) == 1:
+		print(buffer.filename)
 	else:
 		buffer.filename = argv[1]
 	return buffer