diff --git a/include/haproxy/quic_conn.h b/include/haproxy/quic_conn.h
index 1cd17d7665..92caed4e55 100644
--- a/include/haproxy/quic_conn.h
+++ b/include/haproxy/quic_conn.h
@@ -185,8 +185,6 @@ void qc_kill_conn(struct quic_conn *qc);
 
 int qc_parse_hd_form(struct quic_rx_packet *pkt,
                      unsigned char **buf, const unsigned char *end);
-int quic_dgram_parse(struct quic_dgram *dgram, struct quic_conn *qc,
-                     struct listener *li);
 
 int qc_set_tid_affinity(struct quic_conn *qc, uint new_tid, struct listener *new_li);
 void qc_finalize_affinity_rebind(struct quic_conn *qc);