diff --git a/nfq/desync.h b/nfq/desync.h
index 294a4fb..a9b4cf4 100644
--- a/nfq/desync.h
+++ b/nfq/desync.h
@@ -41,7 +41,7 @@ enum dpi_desync_mode {
 };
 
 extern const char *fake_http_request_default;
-extern const uint8_t fake_tls_clienthello_default[648];
+extern const uint8_t fake_tls_clienthello_default[680];
 void randomize_default_tls_payload(uint8_t *p);
 
 enum dpi_desync_mode desync_mode_from_string(const char *s);