diff --git a/configure.ac b/configure.ac
index 65dac55bc..fa44787ef 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1847,7 +1847,7 @@ if test "$curl_ssl_msg" = "$init_ssl_msg"; then
             AC_MSG_NOTICE([Added $gtlslib to LD_LIBRARY_PATH])
           fi
         fi
-        AC_CHECK_FUNCS(gnutls_certificate_set_x509_key_file2)
+        AC_CHECK_FUNCS([gnutls_certificate_set_x509_key_file2 gnutls_alpn_set_protocols gnutls_ocsp_req_init])
       fi
 
     fi
diff --git a/lib/vtls/gtls.c b/lib/vtls/gtls.c
index 2b539380d..a992f9994 100644
--- a/lib/vtls/gtls.c
+++ b/lib/vtls/gtls.c
@@ -92,11 +92,11 @@ static bool gtls_inited = FALSE;
 #    define GNUTLS_MAPS_WINSOCK_ERRORS 1
 #  endif
 
-#  if (GNUTLS_VERSION_NUMBER >= 0x030200)
+#  if HAVE_GNUTLS_ALPN_SET_PROTOCOLS
 #    define HAS_ALPN
 #  endif
 
-#  if (GNUTLS_VERSION_NUMBER >= 0x03020d)
+#  if HAVE_GNUTLS_OCSP_REQ_INIT
 #    define HAS_OCSP
 #  endif