diff --git a/day7.lisp b/day7.lisp
index cff63fb..3e2cc7f 100644
--- a/day7.lisp
+++ b/day7.lisp
@@ -1,4 +1,4 @@
-;;;; day9.lisp
+;;;; day7.lisp
 
 (in-package :advent-of-code-2018)