diff --git a/src/haproxy.c b/src/haproxy.c
index 8f50486..802a88f 100644
--- a/src/haproxy.c
+++ b/src/haproxy.c
@@ -2421,6 +2421,8 @@
 
 	global.maxsock = compute_ideal_maxsock(global.maxconn);
 	global.hardmaxconn = global.maxconn;
+	if (!global.maxpipes)
+		global.maxpipes = compute_ideal_maxpipes();
 
 	/* update connection pool thresholds */
 	global.tune.pool_low_count  = ((long long)global.maxsock * global.tune.pool_low_ratio  + 99) / 100;