diff --git a/src/server.c b/src/server.c
index fc886c917..1bef0e39f 100644
--- a/src/server.c
+++ b/src/server.c
@@ -3596,6 +3596,14 @@ static int _srv_parse_init(struct server **srv, char **args, int *cur_arg,
 			goto out;
 		}
 
+#ifdef USE_QUIC
+		if (newsrv->addr_type.proto_type == PROTO_TYPE_DGRAM &&
+		    newsrv->addr_type.xprt_type == PROTO_TYPE_STREAM) {
+			ha_alert("QUIC protocol is unsupported on the backend side.\n");
+			goto out;
+		}
+#endif
+
 		if (!port1 || !port2) {
 			if (sk->ss_family != AF_CUST_RHTTP_SRV) {
 				/* no port specified, +offset, -offset */