diff --git a/src/mux_fcgi.c b/src/mux_fcgi.c
index 5685ba9c4..d1db2a011 100644
--- a/src/mux_fcgi.c
+++ b/src/mux_fcgi.c
@@ -3931,7 +3931,7 @@ static size_t fcgi_snd_buf(struct conn_stream *cs, struct buffer *buf, size_t co
 	if (!(fstrm->flags & FCGI_SF_OUTGOING_DATA) && count)
 		fstrm->flags |= FCGI_SF_OUTGOING_DATA;
 
-	while (fstrm->state < FCGI_SS_HLOC && !(fconn->flags & FCGI_SF_BLK_ANY) &&
+	while (fstrm->state < FCGI_SS_HLOC && !(fstrm->flags & FCGI_SF_BLK_ANY) &&
 	       count && !htx_is_empty(htx)) {
 		blk = htx_get_head_blk(htx);
 		ALREADY_CHECKED(blk);