diff --git a/testssl.sh b/testssl.sh
index c16f09ef0..6111956f4 100755
--- a/testssl.sh
+++ b/testssl.sh
@@ -15540,11 +15540,10 @@ prepare_tls_clienthello() {
           if [[ 0x$tls_low_byte -le 0x03 ]]; then
                extension_signature_algorithms="
                00, 0d,                    # Type: signature_algorithms , see RFC 5246 and RFC 8422
-               00, 34, 00,32,             # lengths
+               00, 30, 00,2e,             # lengths
                06,01, 06,02, 06,03, 05,01, 05,02, 05,03, 04,01, 04,02, 04,03,
                03,01, 03,02, 03,03, 02,01, 02,02, 02,03,
-               08,04, 08,05, 08,06, 08,07, 08,08, 08,09, 08,0a, 08,0b
-               08,40, 08,41"
+               08,04, 08,05, 08,06, 08,07, 08,08, 08,09, 08,0a, 08,0b"
           else
                extension_signature_algorithms="
                00, 0d,                    # Type: signature_algorithms , see RFC 8446