1 files changed, 1 insertions, 1 deletions

diff --git a/src/lib/libcrypto/asn1/a_strex.c b/src/lib/libcrypto/asn1/a_strex.c
index 1def6c6549..8abfdfe598 100644
--- a/src/lib/libcrypto/asn1/a_strex.c
+++ b/src/lib/libcrypto/asn1/a_strex.c
@@ -279,7 +279,7 @@ static int do_dump(unsigned long lflags, char_io *io_ch, void *arg, ASN1_STRING
  * otherwise it is the number of bytes per character
  */
 
-const static char tag2nbyte[] = {
+const static signed char tag2nbyte[] = {
         -1, -1, -1, -1, -1,     /* 0-4 */
         -1, -1, -1, -1, -1,     /* 5-9 */
         -1, -1, 0, -1,          /* 10-13 */