1 files changed, 1 insertions, 1 deletions
diff --git a/epan/to_str.c b/epan/to_str.c
index 9e5d771a1b..e25675647b 100644
--- a/epan/to_str.c
+++ b/epan/to_str.c
@@ -152,7 +152,7 @@ bytes_to_hexstr_punct(char *out, const guint8 *ad, guint32 len, char punct) {
  * If punct is '\0', no punctuation is applied (and thus
  * the resulting string is (len-1) bytes shorter)
  */
-gchar *
+const gchar *
 bytestring_to_str(const guint8 *ad, const guint32 len, const char punct) {
   gchar *buf;
   size_t       buflen;