diff --git a/day06/part1.py b/day06/part1.py
index ee2d549..e27520f 100644
--- a/day06/part1.py
+++ b/day06/part1.py
@@ -1,4 +1,4 @@
-lines = (set([c for c in x.strip()]) for x in open("input.txt"))
+lines = (set(x.strip()) for x in open("input.txt"))
 
 current = set()
 count = 0
diff --git a/day06/part2.py b/day06/part2.py
index 8f76906..b803883 100644
--- a/day06/part2.py
+++ b/day06/part2.py
@@ -1,4 +1,4 @@
-lines = (set([c for c in x.strip()]) for x in open("input.txt"))
+lines = (set(x.strip()) for x in open("input.txt"))
 
 current = set()
 count = 0