diff --git a/src/hq_interop.c b/src/hq_interop.c
index 4dbd9adf4..3ded46266 100644
--- a/src/hq_interop.c
+++ b/src/hq_interop.c
@@ -171,10 +171,13 @@ static size_t hq_interop_snd_buf(struct qcs *qcs, struct buffer *buf,
 	uint32_t bsize, fsize;
 	struct buffer *res = NULL;
 	size_t total = 0;
+	char eom;
 	int err;
 
 	*fin = 0;
 	htx = htx_from_buf(buf);
+	/* EOM is saved here, useful if 0-copy is performed with HTX buf. */
+	eom = htx->flags & HTX_FL_EOM;
 
 	while (count && !htx_is_empty(htx) && qcc_stream_can_send(qcs)) {
 		/* Not implemented : QUIC on backend side */
@@ -267,7 +270,7 @@ static size_t hq_interop_snd_buf(struct qcs *qcs, struct buffer *buf,
 	}
 
  end:
-	if (htx->flags & HTX_FL_EOM && htx_is_empty(htx))
+	if (eom && htx_is_empty(htx))
 		*fin = 1;
 	htx_to_buf(htx, buf);