diff -ru wget-1.21.3.org/src/gnutls.c wget-1.21.3/src/gnutls.c
--- wget-1.21.3.org/src/gnutls.c	2022-02-26 15:47:42.000000000 +0100
+++ wget-1.21.3/src/gnutls.c	2022-06-21 20:51:40.244552644 +0200
@@ -1085,7 +1085,7 @@
           logprintf (LOG_NOTQUIET, _("The certificate has not yet been activated\n"));
           success = false;
         }
-      if (now >= gnutls_x509_crt_get_expiration_time (cert))
+      if (now >= (unsigned long) gnutls_x509_crt_get_expiration_time (cert))
         {
           logprintf (LOG_NOTQUIET, _("The certificate has expired\n"));
           success = false;