diff --git a/2021/day01/aoc-c.c b/2021/day01/aoc-c.c
index cdcbd63..ccef676 100644
--- a/2021/day01/aoc-c.c
+++ b/2021/day01/aoc-c.c
@@ -1,4 +1,4 @@
-/* aoc-c: Advent of Code 2021, day 1 parts 1 & 2
+/* aoc-c.c: Advent of Code 2021, day 1 parts 1 & 2
  *
  * Copyright (C) 2021 Bruno Raoult ("br")
  * Licensed under the GNU General Public License v3.0 or later.
diff --git a/2021/day02/aoc-c.c b/2021/day02/aoc-c.c
index 2b98ee6..e039408 100644
--- a/2021/day02/aoc-c.c
+++ b/2021/day02/aoc-c.c
@@ -1,4 +1,4 @@
-/* aoc-c: Advent of Code 2021, day 2 parts 1 & 2
+/* aoc-c.c: Advent of Code 2021, day 2 parts 1 & 2
  *
  * Copyright (C) 2021 Bruno Raoult ("br")
  * Licensed under the GNU General Public License v3.0 or later.
diff --git a/2021/day03/aoc-c.c b/2021/day03/aoc-c.c
index bb57aa8..bdd571d 100644
--- a/2021/day03/aoc-c.c
+++ b/2021/day03/aoc-c.c
@@ -1,4 +1,4 @@
-/* aoc-c: Advent of Code 2021, day 3 parts 1 & 2
+/* aoc-c.c: Advent of Code 2021, day 3 parts 1 & 2
  *
  * Copyright (C) 2021 Bruno Raoult ("br")
  * Licensed under the GNU General Public License v3.0 or later.
diff --git a/2021/day04/aoc-c.c b/2021/day04/aoc-c.c
index 525d4f1..3c49832 100644
--- a/2021/day04/aoc-c.c
+++ b/2021/day04/aoc-c.c
@@ -1,4 +1,4 @@
-/* aoc-c: Advent of Code 2021, day 4 parts 1 & 2
+/* aoc-c.c: Advent of Code 2021, day 4 parts 1 & 2
  *
  * Copyright (C) 2021 Bruno Raoult ("br")
  * Licensed under the GNU General Public License v3.0 or later.
diff --git a/2021/day05/aoc-c.c b/2021/day05/aoc-c.c
index 2c22d50..6042851 100644
--- a/2021/day05/aoc-c.c
+++ b/2021/day05/aoc-c.c
@@ -1,4 +1,4 @@
-/* aoc-c: Advent of Code 2021, day 5 parts 1 & 2
+/* aoc-c.c: Advent of Code 2021, day 5 parts 1 & 2
  *
  * Copyright (C) 2021 Bruno Raoult ("br")
  * Licensed under the GNU General Public License v3.0 or later.
diff --git a/2021/day06/aoc-c.c b/2021/day06/aoc-c.c
index ea4056a..cbace19 100644
--- a/2021/day06/aoc-c.c
+++ b/2021/day06/aoc-c.c
@@ -1,4 +1,4 @@
-/* aoc-c: Advent of Code 2021, day 6 parts 1 & 2
+/* aoc-c.c: Advent of Code 2021, day 6 parts 1 & 2
  *
  * Copyright (C) 2021 Bruno Raoult ("br")
  * Licensed under the GNU General Public License v3.0 or later.
diff --git a/2021/day07/aoc-c.c b/2021/day07/aoc-c.c
index 1784f23..4df8d2c 100644
--- a/2021/day07/aoc-c.c
+++ b/2021/day07/aoc-c.c
@@ -1,4 +1,4 @@
-/* aoc-c: Advent of Code 2021, day 7 parts 1 & 2
+/* aoc-c.c: Advent of Code 2021, day 7 parts 1 & 2
  *
  * Copyright (C) 2021 Bruno Raoult ("br")
  * Licensed under the GNU General Public License v3.0 or later.
diff --git a/2021/day08/aoc-c.c b/2021/day08/aoc-c.c
index 78d0bea..ad3259b 100644
--- a/2021/day08/aoc-c.c
+++ b/2021/day08/aoc-c.c
@@ -1,4 +1,4 @@
-/* aoc-c: Advent of Code 2021, day 8 parts 1 & 2
+/* aoc-c.c: Advent of Code 2021, day 8 parts 1 & 2
  *
  * Copyright (C) 2021 Bruno Raoult ("br")
  * Licensed under the GNU General Public License v3.0 or later.
diff --git a/2021/day09/aoc-c.c b/2021/day09/aoc-c.c
index 60c57f2..fb238c9 100644
--- a/2021/day09/aoc-c.c
+++ b/2021/day09/aoc-c.c
@@ -1,4 +1,4 @@
-/* aoc-c: Advent of Code 2021, day 9 parts 1 & 2
+/* aoc-c.c: Advent of Code 2021, day 9 parts 1 & 2
  *
  * Copyright (C) 2021 Bruno Raoult ("br")
  * Licensed under the GNU General Public License v3.0 or later.
diff --git a/2021/day10/aoc-c.c b/2021/day10/aoc-c.c
index d7e1704..0af7899 100644
--- a/2021/day10/aoc-c.c
+++ b/2021/day10/aoc-c.c
@@ -1,4 +1,4 @@
-/* aoc-c: Advent of Code 2021, day 10 parts 1 & 2
+/* aoc-c.c: Advent of Code 2021, day 10 parts 1 & 2
  *
  * Copyright (C) 2021 Bruno Raoult ("br")
  * Licensed under the GNU General Public License v3.0 or later.
diff --git a/2021/templates/aoc-c.c b/2021/templates/aoc-c.c
index 043c2d6..579b5d0 100644
--- a/2021/templates/aoc-c.c
+++ b/2021/templates/aoc-c.c
@@ -1,4 +1,4 @@
-/* aoc-c: Advent of Code 2021, day 1 parts 1 & 2
+/* aoc-c.c: Advent of Code 2021, day 1 parts 1 & 2
  *
  * Copyright (C) 2021 Bruno Raoult ("br")
  * Licensed under the GNU General Public License v3.0 or later.