diff --git a/src/cfgparse.c b/src/cfgparse.c
index 17db1fcae..7fc499a6f 100644
--- a/src/cfgparse.c
+++ b/src/cfgparse.c
@@ -3611,7 +3611,7 @@ int check_config_validity()
 				for (i = 0; i < global.nbthread; i++)
 					MT_LIST_INIT(&newsrv->safe_conns[i]);
 
-				newsrv->curr_idle_thr = calloc(global.nbthread, sizeof(int));
+				newsrv->curr_idle_thr = calloc(global.nbthread, sizeof(*newsrv->curr_idle_thr));
 				if (!newsrv->curr_idle_thr)
 					goto err;
 				continue;