diff --git a/src/server.c b/src/server.c
index 312aa19..4068255 100644
--- a/src/server.c
+++ b/src/server.c
@@ -5309,7 +5309,7 @@
 {
 	struct server *srv = context;
 	struct connection *conn, *conn_back;
-	unsigned int to_destroy = srv->curr_idle_conns / 2 + (srv->curr_idle_conns & 1);
+	unsigned int to_destroy = srv->curr_idle_thr[tid] / 2 + (srv->curr_idle_thr[tid] & 1);
 	unsigned int i = 0;