1 files changed, 2 insertions, 1 deletions
diff --git a/src/basic/terminal-util.c b/src/basic/terminal-util.c
index 20e22ad6e..9ef007d30 100644
--- a/src/basic/terminal-util.c
+++ b/src/basic/terminal-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
@@ -1003,7 +1004,7 @@ int get_ctty_devnr(pid_t pid, dev_t *d) {
 }
 
 int get_ctty(pid_t pid, dev_t *_devnr, char **r) {
-        char fn[sizeof("/dev/char/")-1 + 2*DECIMAL_STR_MAX(unsigned) + 1 + 1], *b = NULL;
+        char fn[STRLEN("/dev/char/") + 2*DECIMAL_STR_MAX(unsigned) + 1 + 1], *b = NULL;
         _cleanup_free_ char *s = NULL;
         const char *p;
         dev_t devnr;