diff --git a/dcc/dsda.py b/dcc/dsda.py
index 5ce4029..8190a7c 100644
--- a/dcc/dsda.py
+++ b/dcc/dsda.py
@@ -24,7 +24,7 @@ class DSDA(dcc.doom_base.WadMap):
 		subprocess.run([editor, dtp])
 		fh1 = parsed_args.wad[0:2] + parsed_args.map
 		if parsed_args.single:
-			fh1 = parsed_args.wad[0:min(len(parsed_args.wad, 4))]
+			fh1 = parsed_args.wad[0:min(len(parsed_args.wad), 4)]
 		fh2 = ""
 		with open(dtp, mode="r") as f:
 			for line in f: