diff --git a/src/queue.c b/src/queue.c
index 173ef76f6..57fd087bf 100644
--- a/src/queue.c
+++ b/src/queue.c
@@ -209,7 +209,10 @@ static int pendconn_process_next_strm(struct server *srv, struct proxy *px)
 	if (srv->nbpend)
 		p = LIST_ELEM(srv->pendconns.n, struct pendconn *, list);
 
-	if (srv_currently_usable(rsrv) && px->nbpend) {
+	if (srv_currently_usable(rsrv) && px->nbpend &&
+	    (!(srv->flags & SRV_F_BACKUP) ||
+	     (!px->srv_act &&
+	      (srv == px->lbprm.fbck || (px->options & PR_O_USE_ALL_BK))))) {
 		struct pendconn *pp;
 
 		pp = LIST_ELEM(px->pendconns.n, struct pendconn *, list);
@@ -360,6 +363,15 @@ int pendconn_grab_from_px(struct server *s)
 	if (!srv_currently_usable(s))
 		return 0;
 
+	/* if this is a backup server and there are active servers or at
+	 * least another backup server was elected, then this one must
+	 * not dequeue requests from the proxy.
+	 */
+	if ((s->flags & SRV_F_BACKUP) &&
+	    (s->proxy->srv_act ||
+	     ((s != s->proxy->lbprm.fbck) && !(s->proxy->options & PR_O_USE_ALL_BK))))
+		return 0;
+
 	HA_SPIN_LOCK(PROXY_LOCK, &s->proxy->lock);
 	maxconn = srv_dynamic_maxconn(s);
 	list_for_each_entry_safe(p, pback, &s->proxy->pendconns, list) {