diff --git a/lib/date_to_str.c b/lib/date_to_str.c
index cb3f6d5af..9ae31f07b 100644
--- a/lib/date_to_str.c
+++ b/lib/date_to_str.c
@@ -1,31 +1,9 @@
 /*
- * Copyright (c) 2021, Alejandro Colomar <alx.manpages@gmail.com>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. The name of the copyright holders or contributors may not be used to
- *    endorse or promote products derived from this software without
- *    specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
- * PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * SPDX-FileCopyrightText: 2021-2023, Alejandro Colomar <alx@kernel.org>
+ * SPDX-License-Identifier: BSD-3-Clause
  */
 
+
 #include <config.h>
 
 #include <string.h>
@@ -36,6 +14,7 @@
 #include "strtcpy.h"
 #include "prototypes.h"
 
+
 void
 date_to_str(size_t size, char buf[size], long date)
 {
@@ -54,6 +33,6 @@ date_to_str(size_t size, char buf[size], long date)
 		return;
 	}
 
-	(void) strftime(buf, size, "%Y-%m-%d", tm);
-	buf[size - 1] = '\0';
+	if (strftime(buf, size, "%Y-%m-%d", tm) == 0)
+		(void) strtcpy(buf, "future", size);
 }