diff --git a/src/event/ngx_event_quic.c b/src/event/ngx_event_quic.c
index 41d30ca10..669637674 100644
--- a/src/event/ngx_event_quic.c
+++ b/src/event/ngx_event_quic.c
@@ -417,9 +417,7 @@ ngx_quic_add_handshake_data(ngx_ssl_conn_t *ssl_conn,
 
         SSL_get0_alpn_selected(c->ssl->connection, &data, &len);
 
-        if (len != NGX_QUIC_ALPN_LEN
-            || ngx_strncmp(data, NGX_QUIC_ALPN_STR, NGX_QUIC_ALPN_LEN) != 0)
-        {
+        if (len == 0) {
             qc->error = 0x100 + SSL_AD_NO_APPLICATION_PROTOCOL;
             qc->error_reason = "unsupported protocol in ALPN extension";
 
diff --git a/src/event/ngx_event_quic.h b/src/event/ngx_event_quic.h
index 783820a2f..99c460407 100644
--- a/src/event/ngx_event_quic.h
+++ b/src/event/ngx_event_quic.h
@@ -18,11 +18,6 @@
 #endif
 #define NGX_QUIC_VERSION  (0xff000000 + NGX_QUIC_DRAFT_VERSION)
 
-#define NGX_QUIC_ALPN(s)         NGX_QUIC_ALPN_DRAFT(s)
-#define NGX_QUIC_ALPN_DRAFT(s)   "h3-" #s
-#define NGX_QUIC_ALPN_STR        NGX_QUIC_ALPN(NGX_QUIC_DRAFT_VERSION)
-#define NGX_QUIC_ALPN_LEN        (sizeof(NGX_QUIC_ALPN_STR) - 1)
-
 #define NGX_QUIC_MAX_SHORT_HEADER            25 /* 1 flags + 20 dcid + 4 pn */
 #define NGX_QUIC_MAX_LONG_HEADER             56
     /* 1 flags + 4 version + 2 x (1 + 20) s/dcid + 4 pn + 4 len + token len */